AKS 3A & B Law of Conservation of Mass
Authored by Marissa Brown
Science
8th - 12th Grade
NGSS covered
Used 11+ times
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14 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
The Law of Conservation of Matter
tells how many atoms of an element are contained in one molecule or formula unit.
the starting materials in a chemical reaction
the new substances that are formed in a chemical reaction
A law stating that atoms are not created or destroyed during a chemical reaction.
Tags
NGSS.MS-PS1-5
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Is the equation balanced?: 2H2O + O2 --> 4MgO + 3Fe
yes
no
Tags
NGSS.MS-PS1-5
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Balance this equation
_Al +_HCl --> _H2 +_AlCl3
2,6,3,2
it's already balanced
4,12,3,4
2,1,4,5
Tags
NGSS.MS-PS1-5
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
The coefficient in 3H2O is
6
5
2
3
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
How many atoms of carbon (C) are in C6H12O6?
Tags
NGSS.MS-PS1-1
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
If reaction starts with 20g of reactants it should produce
Tags
NGSS.MS-PS1-5
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
When sodium and chlorine combine to form sodium chloride, sodium chloride is the:
Originator
Reactant
Product
Produce
Tags
NGSS.MS-PS1-5
NGSS.MS-PS1-2
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