Year 9 Chemistry
Authored by Sarah Myles
Chemistry
8th - 10th Grade
NGSS covered
Used 298+ times
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A universal indicator measures ___________.
Acidity
pH
Ions
Ions
Ions
Alkali levels
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A chemical reaction that produces energy is a /an
endothermic reaction
exothermic reaction
energy
chemical reaction
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the law of Conservation of Mass?
A measure of how much mass is created or destroyed.
Mass can neither be created nor destroyed during a chemical reaction.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The compounds or elements present at the end of a reaction
reactants
catalyst
products
energy
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The compounds and elements that are present at the beginning of a reaction:
reactants
catalyst
products
energy
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A chemical change happens when...
a substance is changed at the atomic level
bonds are broken and formed
a new substance is made
all of the above!
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What kind of change is a change of state?
Physical
Chemical
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