3.1/3.2 Test
Authored by Jillian Haug
Science
8th Grade
NGSS covered
Used 2+ times
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18 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Chemical bonds join __________________ together.
atoms
compounds
Tags
NGSS.MS-PS1-1
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
A covalent bond is a chemical bond formed when two atoms share pairs of __________________ __________________.
valence electrons
protons
Tags
NGSS.MS-PS1-1
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
A molecule is a group of atoms held together by __________________ bonds.
covalent
polar
Tags
NGSS.MS-PS1-1
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Polar molecules shows __________________ sharing of electrons.
unequal
equal
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Chemical symbols in a chemical formula represent...
the element
the number of atoms
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Numbers in a chemical formula represent...
the element
the number of atoms
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
An ion is an atom that has a charge because it has __________________ electrons or __________________ electrons.
gained ; lost
stolen ; replaced
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