Stoichiometry

Quiz
•
Science
•
11th Grade
•
Hard
Standards-aligned
Lisa Thompson
FREE Resource
25 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the mole ratio of H2O to H3PO4 in the following chemical equation?
1 to 6
3 to 2
4 to 6
2 to 3
Tags
NGSS.HS-PS1-7
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Knowing the mole ratio of a reactant and product in a chemical reaction would allow you to determine:
the energy released in the reaction.
the speed of the reaction.
whether the reaction is reversible.
the mass of the product produced from a known mass of reactant.
Tags
NGSS.HS-PS1-7
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
In the reaction represented by the equation CH4(g) + O2(g) ----> CO2(g) + H2O(g), a mass of 125 g CH4 is reacted with excess oxygen. The expression:
mass of oxygen redacted.
mass of carbon dioxide produced.
mass of water produced.
none of the above.
Tags
NGSS.HS-PS1-7
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
2 : 1
1 : 1
3 : 2
6 : 8
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The blue numbers in the image below represent ________
I don't know, and don't want to try
coefficients
subscripts
none of the answers are correct
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A number written in front of a chemical formula is called a(n)
subscript
superscript
yield
coefficient
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is a coefficient?
The small number on the right of the chemical symbol.
The large number to the left of a formula.
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