law of conservation of mass
Authored by Diba Shukurzad
Science
10th Grade
Used 1+ times
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21 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The Law of Conservation of Mass states Matter is NEITHER created nor destroyed.
True
False
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The Coefficient (3) in the Chemical Formula, 3H2O, tells you how many _____________ there are.
Atoms of Hydrogen
Atoms of Oxygen
Atoms of Water
Molecules of Water
3.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
How many oxygen atoms are in this chemical formula?
6 oxygen atoms
2 oxygen atoms
3 oxygen atoms
4 oxygen atoms
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
A chemical reaction is balanced when
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
If a reaction starts with a total 75g of reactants it should produce
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
24 g of magnesium reacts with 38 g of fluorine to produce _____ g magnesium fluoride
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the arrow in a chemical equation...
H2 + O --> H2O
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