Which of the following acids would readily react with CaCO3 to liberate CO2?
A. CH3COOH B. H2SO4 C. H2SO3 D. HNO3 Correct Answer: Option B B. H2SO4 Explanation H2SO4(aq)+CaCO3(aq)→CaSO4(aq)+CO2(g)+H2O(l)The aqueous solution which has pH > 7 is?
A. FeCI3(aq) B. CuSO4(aq) C. KNO3(aq) D. Na2CO3(aq) Correct Answer: Option D D. Na2CO3(aq)When heat is absorbed during a chemical reaction, the reaction is said to be?
A. adiabatic B. endothermic C. exothermic D. isothermal Correct Answer: Option B B. endothermicWhich of the following variables is a measure of the average kinetic energy of the molecule of a gas?
A. Density B. Pressure C. Temperature D. Volume Correct Answer: Option C C. TemperatureProducts
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