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- 1. Multiple Choice2 NaClO3 (s) --> 2NaCl (s) +3 O2 (g)
12.00 moles of NaClO3 will produce how many grams of O2?256 g of O2576 g of O2288 g O2 - 2. Multiple Choice2CO + O2 −-> 2CO2
How many liters of carbon dioxide are produced from 10L of carbon monoxide?102015 - 3. Multiple Choice4 Al + 3 O2 –> 2 Al2O3 How much aluminum would be needed to completely react with 45 grams of O2?1.05 moles3.75 moles1.875 grams1.875 moles
- 4. Multiple ChoiceMole ratios are obtained from thebalanced chemical equationperiodic tablemolar mass
- 5. Multiple ChoiceWhat is the mole ratio of H2O to H3PO4 in the following chemical equation? P4O10 + 6 H2O --> 4 H3PO46:44:61:33:1
- 6. Multiple ChoiceWhen does a chemical reaction stop?When the lab is finishedWhen the excess reactant is used upWhen the limiting reactant is used upChemical reactions never stop
- 7. Multiple ChoiceBalance the following reaction :
CaC₂(s) + H₂O(l) --> C₂H₂(g) + Ca(OH)₂(aq)1,2,2,21,2,1,12,1,1,12,1,2,1 - 8. Multiple Choice
In the equation 2 Al2O3 --> 4 Al + 3 O2, what is the mole ratio of aluminum to oxygen (aluminum is asked for, oxygen is given)?
10/6
3/4
4/3
2/3
- 9. Multiple Choice
In the reaction 2 H2 + O2 → 2 H2O what is the mole ratio of oxygen to water
1/2
2/1
3/4
4/3
- 10. Multiple ChoiceN2 + 3H2 → 2NH3
How many moles of hydrogen are needed to react with 2 moles of nitrogen?6231 - Answer choicesTagsAnswer choicesTags