1/26/24, 2:55 AM
Chemistry | Quizizz
Worksheets
Name
Chemistry
Class
Total questions: 13
Worksheet time: 7mins
Date
Instructor name: Jere Musachia
1.
What is a reactant?
a) The ending substance
2.
What is a product?
a) The starting substance
3.
b) The starting substance
b) The ending substance
Using the following chemical reaction
Hydrogen + Oxygen --> water
Identify the reactant(s).
a) Hydrogen and Oxygen
4.
b) water
Using the following chemical reaction
Hydrogen + Oxygen --> water
Identify the product(s).
a) Hydrogen and oxygen
5.
b) water
Angelina mixes 2 substances together in a beaker. The beaker becomes hot and the liquid changes color.
Did a chemical reaction occur?
a) no, because the properties did not change.
b) yes, because the properties changed and a
new substance was made.
6.
Which of the following are NOT signs that a chemical reaction occured?
a) smells different
b) color stays the same
c) the properties changed
d) bubbles of gas formed
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1/26/24, 2:55 AM
7.
8.
Chemistry | Quizizz
What is a precipitate?
a) a change in color
b) a change in temperature
c) a gas formed
d) a solid formed
Alex wants to mix two substances together and to find out if a chemical reaction happens. What
should he do?
a) test the solubility before and after mixing
b) test the density of the before substance but
not the after substances.
c) measure the mass before and after mixing
9.
d) measure the volume before and after mixing
a student mixes apple juice, water, and cinnamon together. Did a chemical reaction occur?
a) no, because the properties stayed the same.
b) Yes, because the apple juice changed the
color of the water.
c) yes, because the temperature stayed the sam d) yes, because dissolving is always a chemical
reaction.
10.
Burning is always a chemical reaction.
a) True
11.
b) false
Sandra was burning a vanilla candle. Was there a chemical reaction?
a) Yes, because the properties of the wick
b) no, because burning is never a chemical
changed.
c) no, because the ash formed was a different
reaction.
d) yes, because heat was added.
substance.
12.
13.
Which of the following is NOT a chemical reaction?
a) acid rain turning a copper roof green.
b) a campfire
c) Dissolving red Koolaid in water.
d) burning a marshmallow in a campfire.
Which of the following is a chemical reaction?
a) dissolving salt in water
b) melting wax in a microwave.
c) Burning bread in the toaster.
d) boiling water to make steam.
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