Chemical Formulas & Equations
Authored by Stephanie Martindale
Science
7th Grade
NGSS covered
Used 553+ times
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16 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The law of conservation of mass states that matter ___________________.
cannot enter into chemical reactions
cannot be created or destroyed
cannot form different substances
cannot be modeled
Tags
NGSS.MS-PS1-5
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chemical formulas are used to represent _________________.
reactions
substances
processes
none of the above
Tags
NGSS.MS-PS1-1
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chemical equations are used to represent _________________.
reactions
substances
processes
none of the above
Tags
NGSS.MS-PS1-5
NGSS.MS-PS1-2
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The small numbers under and to the right of element symbols in a formula are called _________________.
element symbols
exponents
coefficients
subscripts
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The large numbers before a chemical formula that are used as multipliers are known as __________________.
element symbols
exponents
coefficients
subscripts
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A ___________________ uses chemical formulas, plus signs, and an arrow to represent a chemical reaction
chemical formula
chemical equation
element symbol
inventory
Tags
NGSS.MS-PS1-5
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The materials we start with in a reaction are known as __________________.
chemicals
reactants
products
creations
Tags
NGSS.MS-PS1-5
NGSS.MS-PS1-2
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