
Law of conservation f matter
Authored by Elza James
Science
8th - 9th Grade

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17 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
A chemical reaction is balanced when
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
If reaction starts with 20g of reactants it should produce
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
What is the Law of Conservation of mass?
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When sodium and chlorine combine to form sodium chloride, sodium chloride is the:
Originator
Reactant
Product
Produce
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Maria fills a bowl with 200 g of water. She puts the bowl of water in the freezer, and the water freezes. Which will most likely be the mass of the frozen water?
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many atoms do you have in the compound 2MgCl2?
2 atoms
4 atoms
6 atoms
8 atoms
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many Ca (Calcium) atoms are found in Ca(OH)2?
5 atoms
3 atoms
2 atoms
1 atom
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