Chemical Reactions and Balancing Equations
Authored by Charis Chislett-McDonald
Chemistry, Science
6th - 8th Grade
Used 60+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a chemical reaction, the total mass of the products is different to the total mass of the reactants.
True
False
2.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Pick the true statements.
In chemical reactions, the atoms rearrange
Some atoms disappear in chemical reactions
Atoms can change their mass in chemical reactions
There are the same numbers of atoms in the products as there are in the reactants
Atoms are joined together differently in the reactants than they are in the products
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which option is not needed for a combustion reaction to occur?
Fuel
Heat
Oxygen
Light
4.
FILL IN THE BLANKS QUESTION
1 min • 1 pt
Finish the word equation:
Iron + (a) > Iron oxide
5.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
What is produced when a hydrocarbon is burned?
Tick all that apply
carbon dioxide
oxygen
water
energy
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Two solutions react in a beaker. The outside of the beaker begins to feel warm. Is this an endothermic or exothermic reaction?
endothermic
exothermic
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A catalyst is a substance which speeds up a chemical reaction, without being changed or used up in the reaction itself.
True
False
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