Question

An industrial process makes calcium oxide by decomposing calcium carbonate. Which of the following is NOT needed to calculate the mass of calcium oxide that can be produced from 4.7 kg of calcium carbonate?

A. the balanced chemical equation

B. molar masses of the reactants

C. molar masses of the product

D. the volume of the unknown mass

Answer 1

its b or c

Answer 2

The answer is D.
I will explain your problem.
First you have to write the equation: \[Ca CO3\rightarrow CaO+CO2 \]
Then compute the mols of Ca CO3
Then compute the mols of CaO
AND AT LAST THE MASS OF CaO
good luck

Answer 3

oh, sorry, he got it right ^

Answer 4

thanks for the answer