Answer:
the answer is asteroids!
Explanation:
Answer:
astroid
Explanation:
becaus
All of the following are postulates of the kinetic molecular theory of gases except
A. The gas molecules are in constant motion.
B. The gas molecules are in rapid motion.
C. The collisions between molecules are elastic.
D. At a constant temperature, each molecule has the same kinetic energy.
E. The volumes of the molecules are negligible compared with the volume of the container.
All of the following are postulates of the kinetic molecular theory of gases except option D. (at a constant temperature, each molecule has the same kinetic energy).
It is not a postulate of the kinetic theory of gases because the theory states that at a constant temperature, all molecules have the same average kinetic energy as it varies for different molecules due to the fact that they have different velocities.
A qualitative and quantitative description of the characteristics of an ideal gas can be found in something called the kinetic molecular theory. It defines how the molecules move and how they interact with each other while treating the molecules that make up the gas as if they were point masses. In addition to this, it clarifies the connection that exists between the velocities, pressure, and kinetic energy of the molecules.
Want to know more about kinetic molecular theory visit the link which is given below;
https://brainly.com/question/15013597
#SPJ4
Consider the insoluble compound zinc carbonate , ZnCO3 . The zinc ion also forms a complex with hydroxide ions . Write a balanced net ionic equation to show why the solubility of ZnCO3 (s) increases in the presence of hydroxide ions and calculate the equilibrium constant for this reaction. For Zn(OH)42- , Kf = 2.9×1015 . Use the pull-down boxes to specify states such as (aq) or (s).
Answer:
The net ionic equation is \(ZnCO_3 _{(s)} + 4 OH^{-}_{(aq)} \to [Zn(OH)_4]^{2-} _{(aq)} + CO_3^{2-} _{(aq)}\)
The equilibrium constant is \(K = 4.06 *10^{4}\)
Explanation:
From the question we are that
The \(K_f = 2.9 *10^{15 }\)
The ionic equation is chemical represented as
Step 1
\(ZnCO_3 _{(s)}\) ⇔ \(Zn^{2+} _{aq} + CO_3^{2-} _{aq}\) The solubility product constant for stage is \(K_{sp} = 1.4*10^{-11}\)
Step 2
\(Zn^{2+} _{(aq)} + 4 0H^{-} _{(aq)}\) ⇔ \([Zn(OH_4)]^{2-} _{(aq)}\) The formation constant for this step is given as \(K_f = 2.9 *10^{15 }\)
The net reaction is
\(ZnCO_3 _{(s)} + 4 OH^{-}_{(aq)} \to [Zn(OH)_4]^{2-} _{(aq)} + CO_3^{2-} _{(aq)}\)
The equilibrium constant is mathematically evaluated as
\(K = K_{sp} * K_f\)
substituting values
\(K = 1.4*10^{-11} * 2.9 *10^{15}\)
\(K = 4.06 *10^{4}\)
what is lat lakar in sanskrit
Starting with 0.3500 mol CO(g) and 0.05500 mol COCl2(g) in a 3.050 L flask at 668 K, how many moles of CI2(g) will be present at equilibrium?
CO(g) + Cl2(g)》COCl2(g)
Kc= 1.2 x 10^3 at 668 K
At equilibrium, the number of moles of \(Cl_2\) (g) will be 0.2025 mol.
1: Write the balanced chemical equation:
\(C_O\)(g) + \(Cl_2\)(g) ⟶ \(C_OCl_2\)(g)
2: Set up an ICE table to track the changes in moles of the substances involved in the reaction.
Initial:
\(C_O\)(g) = 0.3500 mol
\(Cl_2\)(g) = 0.05500 mol
\(C_OCl_2\)(g) = 0 mol
Change:
\(C_O\)(g) = -x
\(Cl_2\)(g) = -x
\(C_OCl_2\)(g) = +x
Equilibrium:
\(C_O\)(g) = 0.3500 - x mol
\(Cl_2\)(g) = 0.05500 - x mol
\(C_OCl_2\)(g) = x mol
3: Write the expression for the equilibrium constant (Kc) using the concentrations of the species involved:
Kc = [\(C_OCl_2\)(g)] / [\(C_O\)(g)] * [\(Cl_2\)(g)]
4: Substitute the given equilibrium constant (Kc) value into the expression:
1.2 x \(10^3\) = x / (0.3500 - x) * (0.05500 - x)
5: Solve the equation for x. Rearrange the equation to obtain a quadratic equation:
1.2 x \(10^3\) * (0.3500 - x) * (0.05500 - x) = x
6: Simplify and solve the quadratic equation. This can be done by multiplying out the terms, rearranging the equation to standard quadratic form, and then using the quadratic formula.
7: After solving the quadratic equation, you will find two possible values for x. However, since the number of moles cannot be negative, we discard the negative solution.
8: The positive value of x represents the number of moles of \(Cl_2\)(g) at equilibrium. Substitute the value of x into the expression for \(Cl_2\)(g):
\(Cl_2\)(g) = 0.05500 - x
9: Calculate the value of \(Cl_2\)(g) at equilibrium:
\(Cl_2\)(g) = 0.05500 - x
\(Cl_2\)(g) = 0.05500 - (positive value of x)
10: Calculate the final value of \(Cl_2\) (g) at equilibrium to get the answer.
Therefore, at equilibrium, the number of moles of \(Cl_2\) (g) will be 0.2025 mol.
For more such questions on equilibrium, click on:
https://brainly.com/question/517289
#SPJ8
How many kilojoules of heat are needed to raise the temperature of 10g of aluminum from 22 degrees C to 55 degrees C, if the specific heat of aluminum is .901 j/gc?
Answer:
name four agricultural inputs are subsidized by the government
0.297 kJ of heat is needed to raise the temperature of 10g of aluminum from 22 degrees Celsius to 55 degrees Celsius.
The specific heat is the amount of heat per unit mass required to raise the temperature by one degree Celsius.
It is a measure of how much energy it takes to raise the temperature of a substance. It is the amount of heat necessary to raise one mass unit of that substance by one temperature unit.
It is given by the formula -
Q = mcΔT
where, Q = amount of heat
m = mass
c = specific heat
ΔT = Change in temperature
Given,
mass = 10g
c = 0.901J/g⁰C
Initial temperature (T₁) = 22⁰C
Final Temperature (T₂) = 55⁰C
Q = mcΔT
= 10 × 0.901 × (55 -22)
= 297.33 J = 0.297 kJ
Learn more about Specific heat, here:
https://brainly.com/question/31608647
#SPJ1
A sample of wastewater has 0.00048 g of lead in 100. g of solution. What is the ppm of lead in the solution?
The concentration of lead in the solution is 4.8 ppm.
The parts per millionThe ppm (parts per million) is a unit used to express the concentration of a solution. It is defined as the number of parts (by mass) of a solute per million parts (by mass) of the solution. To convert from grams per 100 grams to ppm, we can use the following formula:
ppm = (mass of solute/mass of solution) x 10^6
In this case, the mass of solute (lead) is 0.00048 g, and the mass of solution is 100. g. Plugging these values into the formula, we get:
ppm = (0.00048/100) x 10^6
ppm = 4.8
Therefore, the concentration of lead in the solution is 4.8 ppm.
Learn more on parts per million here https://brainly.com/question/30661284
#SPJ1
How many moles of CO2 will be produced in the following reaction if the initial amount of reactants was 0.50 moles?
2NaHCO3 —> Na2CO3 + CO2 + H2O
Answer:
In the following reaction, how many moles of
CO2
can be made by reacting 0.50 moles of
CH4
with excess oxygen?
CH4+O2>CO2+H2O
Explanation:
What is the limiting reactant if 0.5 g Al is reacted with 0.5 g CuCl2?
What is the theoretical yield of copper produced by this reaction?
Taking into account the reaction stoichiometry ,CuCl₂ is the limiting reagent and the theoretical yield of copper produced is 0.2363 grams.
Reaction stoichiometryIn first place, the balanced reaction is:
2 Al + 3 CuCl₂ → 3 Cu + 2 AlCl₃
By reaction stoichiometry (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of moles of each compound participate in the reaction:
Al: 2 molesCuCl₂: 3 molesCu: 3 molesAlCl₃: 2 molesThe molar mass of the compounds is:
Al: 27 g/moleCuCl₂: 134.44 g/moleCu: 63.54 g/moleAlCl₃: 133.35 g/moleThen, by reaction stoichiometry, the following mass quantities of each compound participate in the reaction:
Al: 2 moles ×27 g/mole= 54 gramsCuCl₂: 3 moles ×134.44 g/mole= 403.32 gramsCu: 3 moles ×63.54 g/mole= 190.62 gramsAlCl₃: 2 moles ×133.35 g/mole= 266.7 gramsLimiting reagentThe limiting reagent is one that is consumed first in its entirety, determining the amount of product in the reaction. When the limiting reagent is finished, the chemical reaction will stop.
Limiting reagent in this caseTo determine the limiting reagent, it is possible to use a simple rule of three as follows: if by stoichiometry 54 grams of Al reacts with 403.32 grams of CuCl₂, 0.5 grams of Al reacts with how much mass of CuCl₂?
mass of CuCl₂= (0.5 grams of Al× 403.32 grams of CuCl₂)÷ 54 grams of Al
mass of CuCl₂= 3.734 grams
But 3.734 grams of CuCl₂ are not available, 0.5 grams are available. Since you have less mass than you need to react with 0.5 grams of Al, CuCl₂ will be the limiting reagent.
Definition of theoretical yieldThe theoretical yield is the amount of product acquired through the complete conversion of all reagents in the final product, that is, it is the maximum amount of product that could be formed from the given amounts of reagents.
Theoretical yield of copperConsidering the limiting reagent, the following rule of three can be applied: if by reaction stoichiometry 403.32 grams of CuCl₂ form 190.62 grams of Cu, 0.5 grams of CuCl₂ form how much mass of Cu?
mass of Cu= (0.5 grams of CuCl₂× 190.62 grams of Cu)÷ 403.32 grams of CuCl₂
mass of Cu= 0.2363 grams
Then, the theoretical yield of copper produced is 0.2363 grams.
SummaryIn summary, you obtain:
CuCl₂ is the limiting reagent.the theoretical yield of copper produced is 0.2363 grams.Learn more about theoretical yield:
brainly.com/question/11910892
brainly.com/question/13071761
brainly.com/question/11102909
brainly.com/question/13719016
#SPJ1
Answer question number 2. The question is in the image.
Answer
(3) oct
Explanation
The above hydrocarbon molecule have 8 straight carbon chain, therefore, it would have a prefix of oct.
The theoretical yield of zinc oxide in a reaction is 486 g. What is the percent
yield if 399 g is produced?
O A. 122%
O B. 4.93%
C. 82.1%
D. 29.6%
Answer:
the correct answer is c
Explanation:
becuase i had the same question
how many moles of CO2 are in 35.0 liters of CO2 at STP?
Answer:
75300g ..........................
You have 4 litres of a 3.0 mol/L solution of NaCl in a chemical store room.
How many moles of NaCl are present?
Answer:
12
Explanation:
nNaCl= 4x3=12
coenzyme q carries electrons between which stages of the electron-transport chain? check all that apply.
Answer:
Therefore, the correct answer is:Complex I (NADH-ubiquinone oxidoreductase)Complex II (succinate-ubiquinone oxidoreductase)Complex III (ubiquinol-cytochrome c reductase)Complex IV (cytochrome c oxidase)
Explanation:
Coenzyme Q (also known as ubiquinone) carries electrons between the stages of the electron transport chain in which it is found. In general, coenzyme Q is found in the following stages:Complex I (NADH-ubiquinone oxidoreductase): Coenzyme Q carries electrons from NADH to complex I.Complex III (ubiquinol-cytochrome c reductase): Coenzyme Q carries electrons from complex II (succinate-ubiquinone oxidoreductase) to complex III.Complex IV (cytochrome c oxidase): Coenzyme Q carries electrons from complex III to complex IV.
solve the x:15dm³=x cm³
BRAINLIEST
Answer:
15,000 cm^3
Explanation:
Think of 1 cm^3 as a cube that has side lengths of 1 cm. We know that 1 cm = 0.1 dm, so 1 cm^3 = 0.001 dm^3.
Using dimensional analysis, or the factor-label method, 15 dm^3 x (1 cm^3/0.001 dm^3) = 15,000 cm^3.
Answer:
X = 15d / c
Explanation:
make me brainliest please?
Find the pH of 0.05M Pyridine C 6 H 5 N solution. Know the base dissociation constant K C6H5N = 1.7.10 -9 .
Answer: 10
Explanation:
What information does an acid or base equilibrium constant give?
The value of the equilibrium constant shows the relative amounts or concentrations of the reactants and products.
share the imporatant lesson that you have learned in organic chem
We study the reactions that chemists utilise to create bizarre carbon-based structures in organic chemistry.
The study of the makeup, properties, and responses of organic compounds including organic materials, or matter in any of its many forms that contains carbon atoms, is the subject of the branch of science known as organic chemistry. Their structural formula is determined by study of structure.
We will study the reactions that chemists utilise to create bizarre carbon-based structures in organic chemistry, in addition to the analytical techniques used to characterise them. We'll also consider the molecular reaction mechanisms that are driving those reactions.
To know more about organic chemistry, here:
https://brainly.com/question/14623424
#SPJ1
A chemist records the amount of liquid dispensed by a machine and obtains the following values: 283.2 mL, 284.1 mL, 283.9 mL, 284.0 mL, 284.1 mL. The machine is supposed to dispense 296 mL of liquid. Which of the following describes the accuracy and precision of the machine?
precise but not accurate
accurate but not precise
neither accurate nor precise
accurate and precise
The machine is accurate and precise
Hence , option D is correct one .
Accuracy is the capacity of an instrument to measure the precise value. In other words, it refers to how closely the measured value resembles a reference or genuine value. Small readings can be taken to increase accuracy. The calculation's inaccuracy is decreased by the little reading.
The precision of a substance is defined as the degree to which two or more measurements agree with one another. It is incredibly precise but not always accurate to measure something if you weigh it five times and get 3.2 kg each time. Accuracy is not necessary for precision.
learn about precise ,
https://brainly.com/question/15926220
#SPJ1
how many molecules of water in 61.0 grams of h2o
3. During an experiment, 98 g of water is used in the Styrofoam cup. The initial temperature
of water was 23.7°C. A 39.9-g piece of metal with initial temperature of 100.3°C (after
removing from the boiling water) is added to the calorimeter. The final temperature of water
was 28.2°C.
A) calculate the specific heat of the metal
B) identify the metal
C) calculate the percent error
The percent error is 0.22%. This is a very small error, which suggests that our experimental result is quite accurate.
What is Boiling Point?
Boiling point is the temperature at which a liquid changes state from a liquid to a gas or vapor by the process of boiling. At the boiling point, the vapor pressure of the liquid equals the atmospheric pressure, causing bubbles of vapor to form within the liquid and rise to the surface. The boiling point is a physical property of a substance and can vary depending on the pressure and altitude.
A) To calculate the specific heat of the metal, we can use the equation:
q = m * c * ΔT
q_water = m_water * c_water * ΔT_water
= 98 g * 4.184 J/g°C * (28.2°C - 23.7°C)
= 1903.52 J
where c_water is the specific heat of water, which is 4.184 J/g°C.
Next, we need to calculate the heat released by the metal:
q_metal = -q_water
= -1903.52 J
where the negative sign indicates that the heat is released by the metal and absorbed by the water.
Now, we can calculate the specific heat of the metal:
c_metal = q_metal / (m_metal * ΔT_metal)
= -1903.52 J / (39.9 g * (100.3°C - 23.7°C))
= 0.450 J/g°C
Therefore, the specific heat of the metal is 0.450 J/g°C.
B) To identify the metal, we can compare its specific heat to the known values of specific heats for different metals. The specific heat of the metal we calculated is 0.450 J/g°C. Here are some common metals and their specific heats:
Aluminum: 0.900 J/g°C
Copper: 0.385 J/g°C
Iron: 0.449 J/g°C
Lead: 0.128 J/g°C
Silver: 0.235 J/g°C
Zinc: 0.388 J/g°C
From this, we can see that the specific heat of the metal we calculated is closest to that of iron, which suggests that the metal is likely to be iron.
C) To calculate the percent error, we need to compare the experimental specific heat we calculated (0.450 J/g°C) to the accepted value for iron's specific heat (0.449 J/g°C), using the formula:
percent error = |(0.450 J/g°C - 0.449 J/g°C) / 0.449 J/g°C| * 100%
= 0.22%
Learn more about Boiling Point from the given link
https://brainly.com/question/40140
#SPJ1
1 points
A bottle contains a mixture of two gases: Oxygen and Hellum. The partial pressure of O2 is 1.0 atm and the partial pressure of He is 100.0 mmHg. What is the total pressure in the tank? (Volume and temperature are
constant)
101 alm
011 atm
O 101 mmHg
O 1.1 mmHg
101 mmHg is the total pressure in the tank.
Thus, Dalton's Law of Partial Pressures states that while the volume and temperature of a gaseous mixture are held constant, the total pressure of the mixture is equal to the sum of the partial pressures of its gaseous components.
Nitrogen, oxygen, argon, carbon dioxide, water vapor, and a trace amount of other gases are all present in atmospheric air and pressure.
The increased oxygen content in the chamber can displace the CO bound to hemoglobin faster than air oxygen, hence the hyperbaric chambers are also used to treat carbon monoxide (CO) poisoning. The treatment of scuba divers with the bends is another application for hyperbaric chambers.
Thus, 101 mmHg is the total pressure in the tank.
Learn more about Pressure, refer to the link:
https://brainly.com/question/30673967
#SPJ1
How many sulfur atoms are in 5 SF6 ?
Answer:
The molecular formula for sulfur hexafluoride is SF6 S F 6 , in which there is 1 sulfur atom and 6 fluorine atoms.
Explanation:
hope this helps
draw the structure of Benzanal
Answer:
check your question it's not correct
If a cubic container has a side length of 50.0 cm, what is the volume in liter?
Answer:
The answer is
125 litersExplanation:
To find the volume in liter we must first find the volume in cm³ and convert it to liters
Since the container is a cube
Volume of a cube = l³
where
l is the length of one side
From the question
l = 50 cm
Volume = 50³ = 125000 cm³
Now we convert it to liters using the conversion
1 cm³ = 0.001 L
If 1 cm³ = 0.001 liters
Then 125000 cm³ = 125000 × 0.001
We have the final answer as
125 litersHope this helps you
AP CHEM answer and i will give brainliest, image attached
Answer:
what is this i dont know what kind of math this is
i need help with the question below
Which of the following describes the location and energy of all the valence electrons
of electrically-neutral sulfur (S)?
3p4
3s23p4
Зрб
3523pó
Answer:
1s22s22p63s23p4
Explanation:
Sulfur is located in the p block and has 6 valence electrons (the 2 exponent on the 3s and the 4 exponent on the 3p add up to 6)
The location and energy of all the valence electrons of electrically-neutral sulfur ( S ) is 3s₂3p₄.
What is sulfur ?
Chemical element sulfur has the letter S and atomic number 16. It is multivalent, nonmetallic, and plentiful. Sulfur atoms normally combine to create cyclic octatomic molecules, which have the chemical formula S8. At room temperature, elemental sulfur is a crystalline solid that is brilliant yellow.
In addition to being a fungicide and an ingredient in black gunpowder, sulfur is used to vulcanize black rubber. However, the majority of sulfur is utilized in the creation of sulfuric acid, which is arguably the most significant chemical produced by western civilisations.
Sulfur can be found naturally and in metal sulfide ores. Natively, it may be found close to hot springs and volcanoes.
Thus, option B is correct.
To learn more about sulfur, follow the link;
https://brainly.com/question/16829809
#SPJ5
Which of the following elements has the smallest ionic radius?
5 steps to describing bonding:
●
Identify the type of bonding (if not in question)
Describe if electrons are being lost, gained or
shared by each atom
Describe how this changes the atoms involved
e.g. forms Mg2+" (formula of ion) or becomes
stable (gain a full outer shell)
Add a formula for the compound formed if
asked e.g. Mg₂Cl or HCI
Describe the bonding in magnesium oxide using these
steps include the formula for lithium oxide
The electrons that are being lost gained or shared by each atom are Shared electrons.
Atoms and chemical species lose and gain electrons as they react to gain stability. Therefore, metals usually donate electrons to nonmetals to form cations. The number of electrons depends on their position on the periodic table. When an atom gains an electron, its overall charge becomes negative.
When an atom loses an electron its overall charge becomes positive. When an atom gains or loses electrons, its mass does not change. The number of electrons an atom can lose and gain share during a chemical reaction is called its valence. An atom that loses an electron gains a positive charge because it has fewer negatively charged electrons to balance the positive charge of the protons in the nucleus.
Learn more about The electrons here:- https://brainly.com/question/860094
#SPJ1
These building bricks are in the same container. What type of matter would it represent?
A. a mixture consisting of two compounds
B. a mixture consisting of two elements
C. a compound
D. a mixture of an element and a compound
The container's building bricks are a type of material known as a mixture since it consists of two different components.
What is being displayed?A mixture of two chemicals would be the kind of substance represented in the diagram. This is so because the first brick is made of two separate elements, one of which is yellow and the other of which is black. The other block has a red and blue color scheme to indicate that it is also a composite made up of two separate elements.
What are combinations and substances?Chemical reactions between two or more elements can result in the formation of compounds. Physical mixing of two or more substances results in the formation of mixtures. 2. Types. Three categories of compounds are possible.
To know more about Mixtures and compounds visit: brainly.com/question/13729453
#SPJ1