Law of Conservation of Mass
Authored by Denise Gamez
Science
8th Grade
NGSS covered
Used 115+ times
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15 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
How many atoms do you have in the compound 2MgCl2?
2 atoms
4 atoms
6 atoms
8 atoms
Tags
NGSS.MS-PS1-1
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
How many Ca (Calcium) atoms are found in Ca(OH)2?
5 atoms
3 atoms
2 atoms
1 atom
Tags
NGSS.MS-PS1-1
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
How many atoms do you have in the chemical formula 3H2O2?
7 atoms
12 atoms
4 atoms
6 atoms
Tags
NGSS.MS-PS1-1
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
How many atoms do you have in the chemical formula 2Mg(ClO3)2?
2 atoms
7 atoms
9 atoms
18 atoms
Tags
NGSS.MS-PS1-1
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Law of conservation of mass states the amounts of atoms in the reactants and the products...
Increase
Decrease
Stay the same
No correct answer
Tags
NGSS.MS-PS1-5
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Does the equation H2+O2 →H2O follow the Law of Conservation of Mass?
Yes, because the atoms are equal.
No, because more info is needed.
No, because there are more atoms in the product.
No, because there are more atoms in the reactant.
Tags
NGSS.MS-PS1-5
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
The Law of Conservation of Mass means that...
The Mass of the reactants & products are equal.
The Atoms of the reactants & products are equal.
No mass or atoms is gained or lost during a chemical reaction.
All the states are correct.
Tags
NGSS.MS-PS1-5
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