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

Hey, WELCOME TO OPEN STUDY ! What do u think the answer is ?

Answer 2

@Emotaco62598
\(\Huge\tt\color{#CC0000}W\color{#CD0B00}e\color{#CF1700}l\color{#D12200}c\color{#D32E00}o\color{#D53900}m\color{#D74500}e~\color{#DB5C00}t\color{#DD6800}o~\color{#E17F00}O\color{#E38B00}p\color{#E59600}e\color{#E7A200}n\color{#E9AD00}S\color{#EBB900}t\color{#EDC500}u\color{#EFD000}d\color{#F1DC00}y\color{#F3E700}!\color{#F5F300}!\)

\(I~would~Suggest,\) The volume of the unknown mass for sure. \(Can~you~please~tell~me, Which~way~I~found~that~?\)

Answer 3

It can't be A because you need to balance the equation to get the correct amount of moles. It can't be B because that is what you are attempting to find out.
It can't be C because you need to use this step to find the answer to the question.
Through the process of elimination you can determine that you do not need to use step D. Also the question does not specify any form of volume, mL, or L, etc. Hope this helps! :)