
Decomposition Reactions and Quicklime
Interactive Video
•
Chemistry, Science, Biology
•
9th - 10th Grade
•
Practice Problem
•
Hard
Patricia Brown
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a decomposition reaction?
A reaction that requires no energy input.
A reaction where a single substance breaks down into two or more substances.
A reaction that occurs only in the presence of water.
A reaction where two substances combine to form one.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to silver bromide when exposed to light?
It combines with oxygen.
It remains unchanged.
It forms a new compound with water.
It decomposes into silver and bromine.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the balanced chemical equation for the decomposition of silver bromide?
AgBr → Ag + Br
2AgBr → 2Ag + Br2
AgBr2 → Ag + Br2
2Ag + Br2 → 2AgBr
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which forms of energy can drive decomposition reactions?
Only electricity
Only light
Heat, light, or electricity
Only heat
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is thermal decomposition?
Decomposition caused by light.
Decomposition caused by electricity.
Decomposition that occurs spontaneously.
Decomposition caused by heating.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are the products of the thermal decomposition of calcium carbonate?
Calcium oxide and carbon dioxide
Calcium oxide and water
Calcium carbonate and water
Calcium and oxygen
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is another name for calcium oxide?
Marble
Quicklime
Limestone
Chalk
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