Balancing Chemical Equations
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A brief quiz to see if you know how to balance chemical equations.
- 1.___ CH4 + ___O2 --> ___CO2 + ___H2O
- A.
1 2 1 2
- B.
2 1 2 1
- C.
3 1 2 4
- D.
1 2 3 4
- E.
4 3 1 2
- 2.1. ______ C + ______ O2 --> ______ CO2 write the correct prefixes below
- 3.
- A.
3 1 2
- B.
2 1 3
- C.
1 2 3
- D.
3 2 1
- E.
1 3 2
- 4.
- A.
1 2 1 1
- B.
2 1 1 1
- C.
1 1 2 1
- D.
1 1 1 2
- E.
1 2 1 1
- 5.1. ______ H2S + ______ O2 --> ______ H2O + ______ S
- A.
2 1 2 2
- B.
2 2 1 2
- C.
2 2 2 1
- D.
1 2 2 2
- E.
3 1 2 2
- 6.What law says we need to have balanced chemical equations?
- A.
The law of constant attention
- B.
The law of constant comments
- C.
The second law of thermodynamics
- D.
The law of conservation of mass
- E.
The rule of law
- 7.What would happen if we did not follow the law of conservation of mass when taking apart and then putting together a car for repair?
- A.
We would have extra pieces left over at the end.
- B.
Something would fall off the car soon enough.
- C.
A fuel leak might leave a trail of gasoline along the highway.
- D.
The car might blow up.
- E.
All of the above.
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