WorksheetsEuler - Post Chemical Equations and Stoichiometry
Total questions: 10
Worksheet time: 28mins
1. The end or final materials in a chemical reaction is known as ___
A. reactants
B. product
C. quotient
D. substance
What is the meaning of + used in a chemical equation?
A. yields
B. reacts with
C. heat is applied
D. gas
A. subscript
B. product
C. reactant
D. coefficient
Which equation is correctly balanced?
A. 2
B. 5
C. 8
D. 4
Refer to the chemical equation below to answer questions 6 – 8.How many moles of O2 is needed to form 2 moles of MgO?
A. 1
B. 2
C. 3
D. 6
How many moles of Mg are needed to give 6 moles of MgO?
A. 3
B. 2
C. 6
D. 4
How many moles of oxygen molecules reacted to 2 moles of Mg?
A. 6
B. 3
C. 1
D. 2
In any chemical reaction, the quantities that are preserved are the ___
A. number of moles and the volumes.
B. number of molecules and the volumes.
C. mass and the number of atoms
D. mass and moles
To change from moles of a given substance, to moles of the substance sought, one uses the ____
A. ratio of the molar masses of the two substances.
B. balanced equation coefficients for the substances.
C. subscripts in the formulas for the substances.
D. all the above
