Conservation of Mass
Passage
•
Science
•
8th Grade
•
Easy
Standards-aligned
Amanda McIntyre
Used 1+ times
FREE Resource
6 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the Law of Conservation of Mass state?
Mass is neither created nor destroyed in a chemical reaction.
Mass can be created in a chemical reaction.
Mass can be destroyed in a chemical reaction.
Mass is always increasing in a chemical reaction.
Tags
Understanding
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the chemical equation 2H₂ + O₂ → 2H₂O, how many hydrogen atoms are present in the reactants?
4
2
6
8
Tags
Applying
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If 10 grams of hydrogen reacts with 40 grams of oxygen, what is the total mass of the products?
50 grams
40 grams
30 grams
60 grams
Tags
Applying
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the reaction N₂ + 3H₂ → 2NH₃, how many hydrogen atoms are present in the products?
6
3
2
4
Tags
Applying
5.
FILL IN THE BLANKS QUESTION
30 sec • 1 pt
The substances you start with in a chemical reaction are called (a)
Tags
Understanding
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the total mass of reactants if 5 grams of substance A reacts with 15 grams of substance B?
20 grams
15 grams
10 grams
25 grams
Tags
Applying
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