Multiple Choice
What is the volume of the gas, in liters, if 1.50 mol has a pressure of 1.25 atm at a temperature of -6°C, using the Ideal Gas Law?
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7. Gases
The Ideal Gas Law
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In a chemical reaction involving the decomposition of calcium carbonate (CaCO3), which gas is produced?
A
Oxygen (O2)
B
Nitrogen (N2)
C
Carbon dioxide (CO2)
D
Hydrogen (H2)
Verified step by step guidance1
Identify the chemical reaction involved: The decomposition of calcium carbonate (CaCO3).
Write the balanced chemical equation for the decomposition of calcium carbonate: CaCO3(s) → CaO(s) + CO2(g).
Analyze the products of the reaction: The equation shows that calcium oxide (CaO) and carbon dioxide (CO2) are produced.
Determine which of the products is a gas: In the equation, CO2 is indicated as a gas (g), while CaO is a solid (s).
Conclude that the gas produced in the decomposition of calcium carbonate is carbon dioxide (CO2).
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