Counting Atoms
Authored by Janice Bixler
Science
8th Grade
NGSS covered
Used 59+ times
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16 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A group of chemical symbols and numbers that represent the elements and the numbers of atoms of each element in a compound is
a chemical formula.
an ionic bond.
a heterogeneous mixture.
a homogeneous mixture.
Tags
NGSS.MS-PS1-1
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In chemical formulas, the number of atoms in a unit of the compound is shown by numbers called
superscripts.
subscripts.
coefficients.
elements.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A substance that cannot be broken down into simpler substances.
Element
Compound
Molecule
Mixture
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A number in front of a chemical formula in an equation that indicates how many molecules are in that compound.
Superscript
Subscript
Coefficient
Parenthesis
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A substance made up of atoms of two or more different elements joined by chemical bonds.
Element
Compound
Molecule
Mixture
Tags
NGSS.MS-PS1-1
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A group of like atoms bonded together.
Element
Molecule
Compound
Mixture
Tags
NGSS.MS-PS1-1
7.
FILL IN THE BLANKS QUESTION
1 min • 1 pt
Tags
NGSS.MS-PS1-1
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