What is the scientific explanation behind why room temperature mugs become warm when filled with warm water and why room temperature water becomes warm when poured into warm mug? (How is energy transferred?)

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Answer 1

Answer:

capital organisation and management of natural resources and information policy


Related Questions

500 ml of 3.31 M HCl is mixed with 56.1 g NaOH to produce water and table salt.
What mass of NaCl is produced?
ss

Answers

Answer:

m=1,48g

Explanation:

can you easily make 1-bromopentane as the only product from the reaction of 1 pentene with HBr and why

Answers

The answer is NO
Due to the fact that Br- is attached to carbon which contains lower number of H atom. Therefore, the statement is not true.

Calculate the enthalpy change for the reaction: 4Al(s) + 3MnO2(s) --> 2Al2O3 (s) + 3Mn(s)2Al(s) + 3/2 O2 (g) --> Al2O3(s). ∆ H=-1676.0 kJMn(s) + O2 (g) --> MnO2(s). ∆ H = -521.0 kJ

Calculate the enthalpy change for the reaction: 4Al(s) + 3MnO2(s) --> 2Al2O3 (s) + 3Mn(s)2Al(s) +

Answers

Explanation:

To solve this question, we need to use the Hess's Law.

Hess's Law states that: in a chemical reaction, the heat released or absorbed is constant and independent of the number of steps the reaction goes through. That is, the law states that the enthalpy change of a chemical reaction depends only on its initial state and its final state.

Hess's Law is also known as the law of the sum of heats of reaction, because the enthalpy change is equal to the sum of the changes in the steps through which the chemical reaction passes (intermediate reactions). The calculation is performed as follows:

- If the chemical reaction is inverted, the sign of the enthalpy change must also be inverted;

- If the equation is multiplied, the enthalpy change must also be multiplied;

- If dividing the equation, the enthalpy change must also be divided.

So we're going to invert, divide, or multiply each given equation in order to get the equation that the question gives us.

The equation the question gives us is:

4Al(s) + 3MnO2(s) --> 2Al2O3 (s) + 3Mn(s)

Let's multiply the first equation by 2:

4 Al + 3 O2 --> 2 Al2O3

ΔH = -1676 * 2 = -3,352 kJ

Let's invert and multiply by 3 the second equation:

3 MnO2 -> 3 Mn + 3O2

ΔH = -521 * 3 * (-1)

ΔH = 1,563 kJ

Answer: -1,789 kJ

Calculate the enthalpy change for the reaction: 4Al(s) + 3MnO2(s) --> 2Al2O3 (s) + 3Mn(s)2Al(s) +

Liquid nitrogen, which has a boiling point of −195.79°C, is used as a coolant and as a preservative for biological tissues. Is the entropy of nitrogen higher or lower at −200°C than at −190°C? Explain your answer. Liquid nitrogen freezes to a white solid at −210.00°C, with an enthalpy of fusion of 0.71 kJ/mol. What is its entropy of fusion? Is freezing biological tissue in liquid nitrogen an example of a reversible process or an irreversible process?

Answers

Answer:

Explanation:

Entropy is measure of disorder so as we lower the temperature of gas , its entropy decreases .

Hence at - 200°C entropy of nitrogen will be less than that at - 190°C .

At freezing point ,

entropy of fusion  = latent heat / freezing temperature

= .71 kJ / ( 273 - 210 )

= 710 / 63 J mol⁻¹ K⁻¹ .

= 11.27 J mol⁻¹ K⁻¹ .

entropy of fusion = 11.27 J mol⁻¹ K⁻¹ .

I will give a brainley Hi guys I need help figuring out where the moderately reactive atoms are located on the periodic table and how the number of balance electrons of the light metals compared to those heavier than born

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The moderately reactive atoms located in the periodic table are fluorine, chlorine, bromine, and iodine which means the halogens family.

The number of balance electrons of the light metals compared to those heavier by listing elements in the order of increasing atomic number.

What are halogen metals?

They are the five non-metals in family 7A of the periodic table. Halogens are chemical elements that form inorganic salts. In the periodic table they are part of group 17 or family 7A.

Halogens are strong oxidants and react mainly with alkali metals (Family I A) which tend to donate an electron. They also react with metals and noble gases (Family VIII A).

The chemical elements are arranged from left to right and top to bottom in order of increasing atomic number, or the number of protons in an atom's nucleus, which generally coincides with increasing atomic mass.

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The moderately reactive atoms located in the periodic table are fluorine, chlorine, bromine, and iodine which means the halogens family.

The number of balance electrons of the light metals compared to those heavier by listing elements in the order of increasing atomic number.

What are halogen metals?

They are the five non-metals in family 7A of the periodic table. Halogens are chemical elements that form inorganic salts. In the periodic table they are part of group 17 or family 7A.

Halogens are strong oxidants and react mainly with alkali metals (Family I A) which tend to donate an electron. They also react with metals and noble gases (Family VIII A).

The chemical elements are arranged from left to right and top to bottom in order of increasing atomic number, or the number of protons in an atom's nucleus, which generally coincides with increasing atomic mass.

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True or False: Electrons are significantly smaller than protons and neutrons, we can ignore electrons when we consider the physical property of an atom. ​

Answers

Answer:

true

Explanation:

If the mixture in question 1 is in a 3.0 Liter container at 34 °C, what mass (in grams)of oxygen is present?If oxygen was 0.472 atm

Answers

Answer

The mass (in grams) of oxygen present = 1.79 grams.

Explanation

Given

Volume, V = 3.0 L

Temperature, T = 34 °C = (34 + 273.15 K) = 307.15 K

Pressure, P = 0.472 atm

What to find:

The mass (in grams) of oxygen present.

Step-by-step solution:

Step 1: Calculate the moles of oxygen present.

Using the ideal gas law:

\(PV=nRT\)

R is the molar gas constant = 0.0820574 L•atm/mol•K.

\(\begin{gathered} 0.472\text{ }atm\times3.0\text{ }L=n(0.0820574\text{ }L•atm/mol•K\times307.15\text{ }K) \\ \\ n=\frac{0.472\text{ }atm\times3.0\text{ }L}{0.0820574\text{ }L•atm/mol•K\times307.15\text{ }K} \\ \\ n=0.056\text{ }mol \end{gathered}\)

The moles of oxygen present is 0.056 mol.

Step 2: Convert 0.056 mol oxygen to mass in grams.

The molar mass of oxygen gas = 31.998 g/mol

Using the mole formula below, the mass of oxygen can be calculated as follows:

\(\begin{gathered} Moles=\frac{Mass}{Molar\text{ }mass} \\ \\ \Rightarrow Mass=Moles\times Molar\text{ }mass \\ \\ Mass=0.056\text{ }mol\times31.998\text{ }g\text{/}mol \\ \\ Mass=1.791888\text{ }g\approx1.79\text{ }grams \end{gathered}\)

The mass (in grams) of oxygen present = 1.79 grams.

Write the chemical symbols for three different atoms or atomic cations with 26 electrons.

Answers

A neutral iron atom (Fe)

Mn-1 (a manganese that has gained one electron)

Co+1 (a cobalt that has lost on electrons)

All three of these atoms/ions are isoelectronic, meaning that they all have the same number of electrons!

The chemical symbols for three different atoms or atomic cations with 26 electrons are Fe, \(Co^+\), \(Ni^{2+}\)

Explanation:

The atomic number of an atom is equal to the number of protonsAn atom is neutral, it has an equal number of electrons and protons.Element with atomic number 26 is Iron, Fe.A neutral atom of iron has an equal number of protons and electrons.Cobalt has an atomic number of 27.A neutral atom of cobalt has an equal number of protons and electrons.Cobalt has 27 electrons and by losing one electron it will form a cobalt (I) ion with 26 electrons.The cobalt (I) ion has 26 electrons, \(Co^+\).Nickel has an atomic number of 28.A neutral atom of nickel has an equal number of protons and electrons.Nickel has 28 electrons and by losing two electrons it will form a nickel(II) ion with 26 electrons.The nickel (II) ion has 26 electrons,\(Ni^{2+}\).

So, from this, we can write chemical symbols for three different atoms or atomic cations with 26 electrons are Fe, \(Co^+\), \(Ni^{2+}\).

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Summarize how the structure of organic compounds allows them to function as pigments in 2 – 3 sentences

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Answer:

Biochemistry is the discipline that studies the chemistry of life, and its objective is to explain form and function based on chemical principles. Organic chemistry is the discipline devoted to the study of carbon-based chemistry, which is the foundation for the study of biomolecules and the discipline of biochemistry. Both biochemistry and organic chemistry are based on the concepts of general chemistry, some of which are presented in Fundamentals of Physics and Chemistry Important to Microbiology.

Explanation:

How many atoms are there in a 2 moles of oxygen atoms? How many atoms are there in 2 moles of oxygen molecules?

A. 12 × 10^23 and 24 × 10^23
B. 12 × 10^23 and 12 × 10^23​

Answers

Find the number of moles in 15 grams of silver

the theory that human beings are experiencing a period of rapid cultural diffusion and mixing of identities, values and other cultural forms is called

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The theory that human beings are experiencing a period of rapid cultural diffusion and mixing of identities, values, and other cultural forms is called cultural convergence.

What is Cultural convergence?

Cultural convergence refers to the theory that human beings are experiencing a period of rapid cultural diffusion and mixing of identities, values, and other cultural forms.

As a result of globalization, people all over the world are coming into contact with new cultures and ideas that were previously unavailable to them.

This has led to a blending of cultures and the emergence of new cultural forms that incorporate elements from different traditions.

Hence, The theory that human beings are experiencing a period of rapid cultural diffusion and mixing of identities, values, and other cultural forms is called cultural convergence.

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Water near the surface of a tropical ocean has a temperature of 298.2 K(250

C), whereas water 700 m beneath the surface has a temperature of 280.2 K(7.0

C). It has been proposed that the warm water be used as the hot reservoir and the cool water as the cold reservoir of a heat engine. Find the maximum possible efficiency for such an engine. Analytical solution is give. Convert the same into the necessary generalized function [4]

Answers

The maximum possible efficiency for such an engine is 6.039 %.

Temperature of water near the surface of a tropical ocean = 298.2 K

Temperature of water 700 m beneath the surface = 280.2 K

To find the maximum possible efficiency for the given heat engine,

The maximum possible efficiency of a heat engine depends only on the temperatures of the hot and cold reservoirs, and is given by Carnot efficiency,  η = (T₁ - T₂)/T₁

whereT₁ is the temperature of hot reservoir, T₂ is the temperature of cold reservoir. Temperature is given in Kelvin.

The temperature difference between the hot and cold reservoirs is, T₁ - T₂ = 298.2 K - 280.2 K = 18 K

Substitute these values in the Carnot efficiency equation,

Carnot efficiency, η = (T₁ - T₂)/T₁ = (18 K)/298.2 K = 0.06039. The maximum possible efficiency for such an engine is 6.039 %.

Generalised function is given as η = (T₁ - T₂)/T₁

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The landscape record for 1 mile is 763 and 35000 miles per hour which shows the decimal in expanded form

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The landscape record for 1 mile is 763, and the decimal in expanded form for 35000 miles per hour is 35000.000 and 763.000 miles per hour.

The expanded form of the decimal for 763 and 35000 miles per hour is as follows:

763 and 35000 miles per hour can be expressed as:

763.000 miles per hour

35000.000 miles per hour

In expanded form, the decimal portion is explicitly represented by adding zeros after the whole number portion to maintain the same numerical value.

The expanded form of a decimal involves breaking down the decimal into its place value components. In this case, the decimal portion of both numbers is zero, so we can represent them with trailing zeros to maintain the same value.

In the expanded form, the decimal point is followed by zeros, indicating that there are no fractional parts or decimal place values beyond the whole number portion. This form helps to emphasize the place value of each digit and provide clarity about the absence of any fractional component.

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describe the trend in viscosity of hydrocarbon fuels

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Answer:

Hydrocarbons are the chemical compound that contain the elements carbon and hydrogen only.

They are compounds that are obtained from the fossil fuel crude oil by a process called fractional distillation.

How many moles of Carbon

Dioxide would be

produced from 88 g of propane (C3H8)?

Answers

5.97 moles of CO₂ would be produced from 88g of Propane (C₃H₈).

The balanced chemical equation for the combustion of propane (C₃H₈) is:

C₃H₈ + 5 O₂ → 3 CO₂ + 4 H₂O

The molar mass of propane (C3H8) is:

3(12.01 g/mol) + 8(1.01 g/mol) = 44.1 g/mol

To find the number of moles of propane (C₃H₈), we divide the given mass by the molar mass:

88 g / 44.1 g/mol = 1.99 mol

According to the balanced chemical equation, for every 1 mole of propane (C₃H₈) combusted, 3 moles of carbon dioxide (CO₂) are produced.

Therefore, the number of moles of carbon dioxide (CO₂) produced from 88 g of propane (C₃H₈) is:

1.99 mol C₃H₈ × 3 mol CO₂ / 1 mol C₃H₈ = 5.97 mol CO₂

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if the box weighs 1 500 n how much does the force of gravity do on the box

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The force of gravity acting on the box is 1,500 N or 152.7 kg.

Force of gravity is the force that attracts two objects towards each other. The force of gravity acting on an object is directly proportional to its mass and inversely proportional to the square of the distance between the object and the center of the Earth.

The force of gravity can be calculated using the formula

Fg = mg,

where Fg is the force of gravity, m is the mass of the object, and g is the acceleration due to gravity,

which is approximately 9.81 m/s2 near the surface of the Earth.

If the box weighs 1,500 N, then the force of gravity acting on the box would be

Fg = mg

    = (1,500 N)/(9.81 m/s2)

    = 152.7 kg.

Therefore, the force of gravity acting on the box is 1,500 N or 152.7 kg.

The force of gravity is an important concept in physics, as it affects everything on Earth. The gravitational force between two objects depends on their masses and the distance between them. The more massive the objects are, the greater the force of gravity between them. Similarly, the closer two objects are, the greater the force of gravity between them.

The force of gravity is also responsible for keeping the planets in orbit around the Sun and the Moon in orbit around the Earth. It is a fundamental force of nature that plays a crucial role in our understanding of the universe.

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Which is energy source used to fuel Photosynthesis

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Solar energy-It is absorbed by chlorophyll and used up during photosynthesis

Please mark as brainliest

Answer:

Sunlight.

Explanation:

Just did the test EDG202 :)

Question 6 of 10
What are unit conversions used for?
OA. Unit conversions express the fractional size of something.
B. Unit conversions are used to write very large numbers.
OC. Unit conversions associate a number with its units.
D. Unit conversions express an amount in a different unit.

Answers

Unit conversions used for unit conversions are used to write very large numbers.

Unit conversion is the process of converting the measurement of a given amount between various units, often by multiplicative conversion factors that alter the value of the measured quantity without altering its effects. The term "conversion" describes the procedure of altering or converting a word's class without altering its form.

Even if it was solely used as a noun in the past, the term "email" is now a verb in Modern English. The measurement's unit is crucial. We can learn about a thing's property through measuring. It provides information about an object's weight or length. We can assign a number to that property using a measurement.

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Unit conversions used for unit conversions are used to write very large numbers.

Unit conversion is the process of converting the measurement of a given amount between various units, often by multiplicative conversion factors that alter the value of the measured quantity without altering its effects. The term "conversion" describes the procedure of altering or converting a word's class without altering its form.

Even if it was solely used as a noun in the past, the term "email" is now a verb in Modern English. The measurement's unit is crucial. We can learn about a thing's property through measuring. It provides information about an object's weight or length. We can assign a number to that property using a measurement.

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Describe how fission is controlled in nuclear reactors to produce energy

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Answer:

A neutron absorbing element must be present to control the amount of free neutrons in the reaction space. Most reactors are controlled by means of control rods that are made of a strongly neutron absorbent material such as boron or cadmium

In photosynthesis, plants form glucose (C6H12O6) and oxygen from carbon dioxide and water.
a). Calculate ΔH∘rxn at 15 ∘ C.
b). Calculate ΔS∘rxn at 15 ∘ C.
c). Calculate ΔG∘rxn at 15 ∘ C.

Answers

The thermodynamic quantities ΔH°rxn, ΔS°rxn, and ΔG°rxn for the photosynthesis reaction, we need the standard enthalpy change (∆H°f) and standard entropy change (∆S°f) values for the reactants and products involved.

The balanced equation for photosynthesis is:

6 CO₂(g) + 6 H₂O(l) → C₆H₁₂O₆(aq) + 6 O₂(g)

a) Calculate ΔH°rxn at 15°C:

The standard enthalpy change (∆H°f) values for the reactants and products at 25 °C (298 K) are as follows:

∆H°f [CO₂(g)] = -393.5 kJ/mol

∆H°f [H₂O(l)] = -285.8 kJ/mol

∆H°f [C₆H₁₂O₆(aq)] = -1273.3 kJ/mol

∆H°f [O2(g)] = 0 kJ/mol (oxygen is in its standard state)

Using the stoichiometric cofficients of the balanced equation, we can calculate ∆H°rxn:

∆H°rxn = Σ(n * ∆H°f [products]) - Σ(m * ∆H°f [reactants])

= (1 * -1273.3 kJ/mol) + (6 * 0 kJ/mol) - (6 * -393.5 kJ/mol) - (6 * -285.8 kJ/mol)

= -1273.3 kJ/mol + 0 kJ/mol + 2361 kJ/mol + 1714.8 kJ/mol

= 3802.5 kJ/mol

Therefore, ΔH°rxn at 15°C is 3802.5 kJ/mol.

b) Calculate ΔS°rxn at 15°C:

The standard entropy change (∆S°f) values for the reactants and products at 25 °C (298 K) are as follows:

∆S°f [CO₂(g)] = 213.7 J/(mol·K)

∆S°f [H₂O(l)] = 69.9 J/(mol·K)

∆S°f [C₆H₁₂O₆(aq)] = 212.1 J/(mol·K)

∆S°f [O₂(g)] = 205.0 J/(mol·K)

Using the stoichiometric coefficients of the balanced equation, we can calculate ∆S°rxn:

∆S°rxn = Σ(n * ∆S°f [products]) - Σ(m * ∆S°f [reactants])

= (1 * 212.1 J/(mol·K)) + (6 * 205.0 J/(mol·K)) - (6 * 213.7 J/(mol·K)) - (6 * 69.9 J/(mol·K))

= 212.1 J/(mol·K) + 1230.0 J/(mol·K) - 1282.2 J/(mol·K) - 419.4 J/(mol·K)

= -259.5 J/(mol·K)

Therefore, ΔS°rxn at 15°C is -259.5 J/(mol·K).

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Is there any evidence that the particles in a solid and liquid move? Provide examples.

Answers

Answer:

maybe not solid but a liquid yes

Answer:

yes

Explanation:

the molecules move

Magnesium reacts with the oxygen in the air to form magnesium oxide. If 35 g of O2 was used in the reaction. How many Liters of O2 were present at 301K and a pressure of 1.35 atm?

Answers

Answer:

20.02 Liters

Explanation:

Mass = 35g

Volume = ?

Temperature = 301K

Pressure = 1.35 atm

The relationship between the quantities is given as;

PV =  nRT

n = mass / Molar mass = 35 / 32 = 1.09375 mol

V = nRT / P

V = (1.09375 * 0.0821 * 301) / 1.35

V = 20.02 L

which gas would most likely be found in the greatest amount in the bubbles? a) oxygen. b) ozone. c) nitrogen. d) carbon dioxide

Answers

The gas that would most likely be found in the greatest amount in bubbles is nitrogen, option c.

When a liquid undergoes a rapid change in pressure or temperature, bubbles are usually formed due to the presence of dissolved gases. Nitrogen is the most abundant gas available in natural environments such as water, due to its high solubility. Nitrogen is the primary component in Earth's atmosphere, with nearly 78% of it dissolved in water bodies.

Nitrogen is readily drawn out of the solution when you reduce pressure or the water temperature rises, leading to bubbles.

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The gas that would most likely be found in the greatest amount in the bubbles is d) carbon dioxide.

During various natural processes and chemical reactions, gases can be released in the form of bubbles. When considering the options given, the gas that is commonly produced and released in significant amounts is carbon dioxide (CO2). Carbon dioxide is a byproduct of respiration, combustion, and other metabolic activities in living organisms. It is also released during the process of fermentation, photosynthesis, and decomposition of organic matter.

Oxygen (O2) is an essential gas for respiration, but it is typically consumed rather than produced in significant quantities during most natural processes. Ozone (O3) is a less common gas and is typically found in the Earth's ozone layer. Nitrogen (N2) is a major component of the Earth's atmosphere, but it is relatively inert and does not readily form bubbles.

Carbon dioxide, on the other hand, is frequently produced and released in various natural and chemical processes, making it the gas most likely to be found in the greatest amount in bubbles.

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A gas is confined in a cylinder fitted with a movable piston. At 27ºC, the gas occupies a volume of 2.0 L under a pressure of 3.0 atm. The gas is heated to 47ºC and compressed to 5.0 atm. What volume does the gas occupy in its final state?

A: 0.78 L

B:1.3 L

C:2.1 L

D:0.48 L

Answers

The answer is B (1.3L)

This might help:
A gas is confined in a cylinder fitted with a movable piston. At 27C, the gas occupies a volume of 2.0

The volume of the gas is 1.27 L at a temperature is 47°C and the pressure is 5.0 atm. Therefore, option (B) is correct.

What is the ideal gas equation?

The ideal gas equation is described as the equation of the state of a perfect gas. The ideal gas equation is the product of the pressure and volume of one-mole gas is equal to the multiplication of the absolute temperature and gas constant.

The mathematical equation for a perfect gas is as follows:

PV = nRT

where n is the moles of an ideal gas, P is the pressure of the gas,  V is the volume, and R is the universal gas constant.

Given, the initial volume of the gas, V₁ = 2.0 L

The initial temperature of the gas, T₁ =  27° C = 300.15 K

The initial pressure of the gas, P₁ = 3.0 atm

The final temperature of the gas, T₂ =  47° C = 320.15 K

The initial pressure of the gas, P₂ = 5.0 atm

We know that for an ideal gas:

\(\frac{P_1V_1}{T_1} =\frac{P_2V_2}{T_2}\)

\(V_2=\frac{P_1V_1T_2}{T_1P_2}\)

\(V_2= \frac{3.0\times2.0\times320.15}{5.0\times 300.15}\)

\(V_2= 1.27 L\)

Therefore, the volume of the gas in its final state is equal to 1.27 L when the gas is heated to 47ºC and compressed to 5.0 atm.

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Please help with whatever you can

Please help with whatever you can

Answers

Electrolytes are substances that, when dissolved in water, can conduct electricity. This is because they break down into ions, which are charged particles. The most common electrolytes are salts, acids, and bases.

What are electrolytes about?

When a substance dissolves in water it forms an aqueous solution. Depending on whether or not an aqueous compound conducts electricity determines whether it can be classified as a(n) electrolyte or a non-electrolyte. An electrolyte is a substance whose aqueous solution can conduct electricity because when it dissolves in water it also dissociates into positive cations and negative anions.

A substance whose aqueous solution does not conduct electricity is called a non-electrolyte because when it dissolves in water it does not dissociate into ions. The process by which water molecules split chemical compounds into ions is called dissociation, which is a chemical change that breaks the chemical bonds holding a compound together when dissolved in water. Therefore, in order for a solution to conduct electricity, it must contain ions.

For example, table salt is classified as an electrolyte because if we were able to examine an aqueous solution of sodium chloride, NaCl(aq), at the molecular level, we would see individual sodium ions, Na+ and chloride ions, Cl-, separated, dispersed and hydrated, which means surrounded by water molecules.

On the other hand, if we were able to examine an aqueous solution of table sugar at the molecular level, we would see the individual sugar molecules hydrated, but not dissociated because sugar does not release any ions into solution. Therefore, table sugar is classified as a(n) non-electrolyte.

A compound that breaks entirely into ions as it dissolves in water is classified as a strong electrolyte but a compound that breaks partially into ions as it dissolves in water is classified as a weak electrolyte. For this reason, at the same molar concentration a strong electrolyte is a much better conductor than a weak electrolyte.

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there are 20 _______ amino acids (9)

(fill in the blank)

there are 20 _______ amino acids (9) (fill in the blank)

Answers

Answer: different

Explanation: There are 20 different amino acids.

What would have more thermal energy? the sun or a bad tub full of hot water? please explain your answer

Answers

The sun because it has a lot of heat waves

The sun has more thermal energy than the bath tub full of hot water, because the sun has more heat than the bathe tub full of hot water.

What is thermal energy ?

The energy present in a system that determines its temperature is referred to as thermal energy. Thermal energy flows as heat. Thermodynamics is a whole field of physics that studies how heat is transmitted across various systems and how work is performed in the process.

The object with the higher temperature has more thermal energy with two things have the same mass. A thermometer is used to determine temperature. Heat is the thermal energy that is transferred between things when their temperatures differ.

Undoubtedly, a colder item can possess more thermal energy than a warmer one. Here's one illustration, Thermal energy will be far more in a bathtub full of 100°F water than in a thimble full of 110°F water.

Thus, The sun has more thermal energy than the bath tub full of hot water.

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How many liters could you fill with 65 grams of nitrogen gas (N2) at STP?

Answers

Answer:

Explanation:

Multiply the coefficient 0.022414 by the number of moles to calculate the gas volume in cubic meters at the standard temperature and pressure. In our example, the volume of the nitrogen gas is 0.022414 x 2 = 0.044828 cubic meters or 44.828 liters.

Identify the neutralization reaction. O2H 3PO 4 + 3Ba(OH) 2 6H 20+ Ba(PO 4) 2 O2 NO 2 202 + N 2 PO 4 2NH3 + H2SO 4 → (NH 4) 2SO4 O 3Pb + 2H 3PO4 → 3H 2 + Pb 3(PO 4) 2​

Answers

The neutralization reaction is:

O2H 3PO4 + 3Ba(OH) 2 → 6H 2O+ Ba(PO 4)2

What is neutralization reaction?

A neutralization reaction is a type of chemical reaction that occurs between an acid and a base, resulting in the formation of a salt and water.

In this reaction, the hydrogen ions (H+) from the acid react with the hydroxide ions (OH-) from the base to form water (H2O), which neutralizes the acidic and basic properties of the reactants. The remaining ions then combine to form a salt.

The general equation for a neutralization reaction is:

Acid + Base → Salt + Water

For this question, the chosen answer is the neutralization reaction  because an acid (H3PO4) and a base (Ba(OH)2) react to form water and a salt (Ba(PO4)2).

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what is the empirical formula 63.0 g Rb and 5.90 g O.

Answers

Answer:

Explanation:

1st convert given data into % per 100wt...

Total system mass = 63.0g + 5.90g = 68.9g

%Rb = 63.0g/68.9g x 100% = 91.4% per 100wt

%O  =  5.9g / 68.9g x 100% = 8.6%

Then follow the following sequence of calculations...

% => grams => moles => mole ratio => reduce to smallest whole no ratio => empirical ratio => empirical formula

%Rb = 91.4% => 91.4g/ 85.5g·mol⁻¹ =>1.069mole

%O  =   8.6% =>  8.6g/16g·mol⁻¹ => 0.5375mole

Rb:O => 1.069 : 0.5375

Reduce by dividing by the smaller mole value

1.069/0.5375 : 0.5375/0.5375 => 2 : 1 <=> empirical ratio

∴ Empirical Formula => Rb₂O

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