Review - Chemical Reactions
Authored by Martin Shanley
Chemistry
9th - 12th Grade
NGSS covered
Used 6+ times
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33 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the left part of a chemical equation called?
2H2 + O2 → 2H2O
reactants
products
solutions
compounds
Tags
NGSS.HS-PS1-7
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the right part of a chemical equation called?
2H2 + O2 → 2H2O
reactants
products
solutions
compounds
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the little number after an element in a chemical equation called?
Example: H2
coefficient
atom
subscript
multiplier
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the number before a chemical equation called?
Example: 2H2 + O2 → 2H2O
coefficient
atom
subscript
multiplier
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A chemical equation is balanced when ...
the subscripts of the reactants equal the subscripts of the products
the coefficients of the reactants equal the coefficients of the products
the number of atoms in the reactants equal the number of atoms in the products
the reactants are the same chemicals as the products
Tags
NGSS.HS-PS1-7
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In order to balance a chemical equation, what are the smaller numbers that you CANNOT change the value for?
coefficients
subscripts
reactants
products
Tags
NGSS.MS-PS1-1
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In order to balance a chemical equation, what are the ONLY numbers that you CAN change the value for?
coefficients
subscripts
reactants
products
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