19.1: Mole Concept & Combustion
Authored by Kamal Walters
Science
10th Grade
NGSS covered
Used 2+ times
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14 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What gas is produced when carbon reacts with oxygen during charcoal combustion?
Carbon monoxide
Nitrogen gas
Carbon dioxide
Oxygen gas
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
According to the balanced equation, how many oxygen molecules (O₂) react with each carbon atom (C)?
2
3
1
4
Tags
NGSS.HS-PS1-7
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many carbon dioxide (CO₂) molecules are produced per carbon atom that reacts?
2
1
3
4
Tags
NGSS.MS-PS1-5
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the average mass of a carbon atom?
16.00 amu
32.00 amu
12.00 amu
44.01 amu
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the mass of an O₂ molecule?
12.01 amu
16.00 amu
32.00 amu
44.01 amu
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the mass of a CO₂ molecule?
28.02 amu
44.01 amu
32.00 amu
12.01 amu
Tags
NGSS.MS-PS1-1
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why do chemists use grams instead of amu when dealing with reactions?
Because amu is more accurate
Because reactions involve large numbers of particles
Because grams are smaller units
Because amu cannot measure atoms
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