Have an account?
Skip to Content
Build your own quiz
Suggestions for you
12 questions
Show Answers
See Preview
- 1. Multiple Choice
When the following equation is balanced what are its coefficients in simplified form?
__C8H18 + __O2 → __CO2 + __H2O
1,12.5,8,9
1,12,8,9
2,25,16,18
1,1,8,18
- 2. Multiple Choice
The __________ in a balanced equation reveals the mole ratios of the substances involved.
subscript
coefficients
superscript
total number in each compound
- 3. Multiple Choice
The combustion of a sample of butane, C4H10 (lighter fluid), produced 2.46 grams of water.
2 C4H10 + 13O2 -------> 8CO2 + 10H2O
How many moles of water formed?
0.137 mol
44.28 mol
0.027
0.685
- 4. Multiple Choice
The combustion of a sample of butane, C4H10 (lighter fluid), produced 2.46 grams of water.
2 C4H10 + 13O2 -------> 8CO2 + 10H2O
How many moles of butane burned?
0.137 mol
0.027 mol
0.042 mol
0.27 mol
- 5. Multiple Choice
The combustion of a sample of butane, C4H10 (lighter fluid), produced 2.46 grams of water.
2 C4H10 + 13O2 -------> 8CO2 + 10H2O
How many grams of butane burned?
713.4 gram
0.042 gram
1.57 gram
7.13 gram
- 6. Multiple Choice
The combustion of a sample of butane, C4H10 (lighter fluid), produced 2.46 grams of water.
2 C4H10 + 13O2 -------> 8CO2 + 10H2O
How much oxygen was used up in moles?
0.178 mol
0.137 mol
3.20 mol
0.355 mol
- 7. Multiple Choice
The combustion of a sample of butane, C4H10 (lighter fluid), produced 2.46 grams of water.
2 C4H10 + 13O2 -------> 8CO2 + 10H2O
How much oxygen was used up in grams?
2.85 gram
5.70 gram
4.38 gram
2.19 gram
- 8. Multiple Choice
When 4.7 x 10^11 atoms of sodium are put into excess water, how many grams of NaOH are made?
Reaction: Na + H2O → NaOH + H2
1.13 x 10^46 gram
1.13 x 10^-11 gram
3.12 x 10^-11 gram
6.02 x 10^23 gram
- 9. Multiple Choice
If 56 grams of calcium metal are dropped into hydrochloric acid, how many liters of gas are made?
Reaction: Ca + HCl → CaCl2
1.4 L
100 L
22.4 L
31.36 L
- 10. Multiple Choice
Using the following equation:
2 NaOH + H2SO4 → 2 H2O + Na2SO4
How many liters of sodium sulfate will be formed if you start with 2 moles of sodium hydroxide and you have an excess of sulfuric acid?
0.045 L
44.8 L
89.6 L
22.4 L
- 11. Multiple Choice
Using the following equation:
Pb(SO4)2 + 4 LiNO3 → Pb(NO3)4 + 2 Li2SO4
How many atoms of lithium nitrate will be needed to make 250 grams of lithium sulfate, assuming that you have an adequate amount of lead (IV) sulfate to do the reaction?
6.97 x 10^23
2.79 x 10^24
1.92 x 10^-24
1.39 x 10^24
- 12. Multiple Choice
If 55.6 grams of calcium carbonate react in excess sodium hydroxide, how many grams of Na2CO3 are made?
Reaction: CaCO3 + NaOH → Ca(OH)2 + Na2CO3
147.34 gram
52.45 gram
55.9 gram
194.24 gram
- Answer choicesTagsAnswer choicesTags