When a voltaic cell operates ions move through the
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Related Questions
How many significant digits are in the mass measurement 0.025 g? (a) 1 (B) 2 (c) 3 (d) 4 (e) none of the above
A national convention occurs every four years. Who is responsible for organizing this event? A. national party chairperson B. speaker of the house C. majority leader D. vice president
How does the number of molecules in 1 mol of oxygen compare with the number of molecules in 1 mol of nitrogen?1) 1 mol of oxygen has fewer molecules.2) 1 mol of oxygen has more molecules.3) Each sample has the same number of molecules.4) The molecules cannot be compared without knowing the mass.
What is the 10% energy rule?
Explain, in terms of collision theory, why increasing the pressure of the gases in the cylinder increases the rate of the forward reaction.
Determine the amount of heat released by the production of 1.0 mole of SO3(g).
State, in terms of the concentration of SO3(g) , what occurs when more O2(g) is added to the reaction at equilibrium.
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Increasing the pressure will mean that these particles will collide more frequently to yield the products hence driving the forward reaction.
What is the collision theory?
According to the collsion theory, reaction occurs as a result of collision between reactants in a system. Now we have the reaction; 2SO2(g) + O2(g) <==> 2SO3(g) + 392 kJ.
We can see that there are more particles on the left hand side than on the right hand side. Increasing the pressure will mean that these particles will collide more frequently to yield the products hence driving the forward reaction.
Now;
2 moles of SO3(g) produces 392 kJ of heat
1 mole of SO3(g) produces 1 mole * 392 kJ /2 moles
= 196 kJ
Learn more about collision theory: brainly.com/question/867804
b. 4
c. 8
d. 10
e. 13
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B. Protect the iron from polluted air.
C. Add carbon to the iron.
D. Let the iron develop a natural coat of carbonate.
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Final answer:
The mass in grams of 2.56x10-3 mol of iron is 0.143 g.
Explanation:
To calculate the mass in grams of 2.56x10-3 mol of iron, you need to use the molar mass of iron. The molar mass of iron is 55.845 g/mol. To find the mass in grams, you can use the following step-by-step calculation:
Mass (g) = Number of moles x Molar mass
Mass (g) = 2.56x10-3 mol x 55.845 g/mol = 0.143 g
Learn more about Calculating mass of a substance using moles here:
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B) Volume is proportionally related to moles.
C) Moles remains constant as pressure changes.
D) Temperature is directly related to the moles.
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Pressure is indirectly related to volume.
As the volume increases at a constant temperature, the pressure decreases.
The changes in the number of particles based on the diagram is that Volume is proportionally related to moles. The answer is letter B. The rest of the choices do not answer the question above.
b. combustion
c. replacement
d. decomposition
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Answer:
D. decomposition
Explanation:
Synthesis reaction occurs when two elements or compounds react to originate a new one:
A + B ⇒ C
Combustion occurs when a fuel reacts with oxygen to form CO₂ and water:
A + O₂ ⇒ CO₂ + H₂O
Replacement reaction can be simple or double. Simple occurs when a simple element replaces others in a compound:
A + BC ⇒ B + AC
Double occurs when two compounds replace elements between them:
AB + CD ⇒ AC + BD
Decomposition reaction occurs when a compound originates two or more compounds
A ⇒ B + C
So, the reaction given is a decomposition chemical reaction.
2MgO → 2Mg + O2 is an example of a decomposition chemical reaction. The answer is letter D. It is not a replacement reaction because no other compound is involved. It is not a combustion reaction because no oxygen is involved.