If you can answer at least any of these then please do so. If you can answer all that would be best but if you can’t then please answer a couple. Thanks.

1. When 13.0 g of H₂ is mixed with 10.0 g of N₂, and form ammonia (NH₃), what is the limiting reactant?
2. In the following reaction, which may or may not be balanced: C₃H₈ + O₂ = CO₂ + H₂O, if 100.0 g of C₃H₈ react and form 32.3 g of CO₂, what is the percent yield?
3. When 47.9 g of sodium carbonate is reacted with silver (I) nitrate, the products are sodium nitrate and 26.0 g of silver (I) carbonate. What is the percent yield?
4. In the following balanced chemical equation: N₂ + 3H₂ = 2 NH_3, if 30.0 g of N₂ and 10.0g of H₂ react, forming 2.1g of NH₃, what is the percent yield?
5. In the following balanced chemical reaction: CaCl₂ + 2AgNO₃ = 2AgCl + Ca(NO₃)_2, if 45.0g of CaCl₂ is mixed with 95.0g of AgNO₃, what is the theoretical yield of AgCl? 
6. If 50.0g of lithium phosphate is mixed with 50.0g of iron (II) nitrate, the products are lithium nitrate and iron (II) phosphate. If 14.7g of iron (II) phosphate forms, what is the percent yield?
7. Pick which is the solute from the following: 10 mL H₂O, 20 mL ethanol, 15 mL rubbing alcohol.
8. In the following solution, which is the solvent – 15 mL of liquid ethanol, 10 mL of liquid isopropanol, and 50 mL of liquid water?    
9. What is the molarity of a solution made from 2.50 g of CoBr₂ in 550 mL of water?
10. What is the molarity of a solution made from 3.65 g of cobalt (II) phosphate in 450 mL of water?
11. What mass of CaCl₂ is in a 350 mL sample of 0.15 M of CaCl₂?
12. What mass of iron (III) carbonate is in a 255 mL sample of 0.20M of iron (III) carbonate?
13. What amount of Al₂O₃ is produced from the reaction of 3.0 moles of Al with 2.0 moles of Fe₂O₃? Use the equation: 2Al + Fe₂O₃ = Al₂O₃ + 2 Fe.
14. The limiting reactant for a given reaction can be recognized because it is the reactant that…?
15. Equimolar amounts of nitrogen, hydrogen, and argon are placed in a reaction chamber. The amount of which substance(s) will determine the amount of ammonia produced in the following reaction, if the reaction goes to completion? N_2(g) + 3H_2(g) = 2 NH_3(g)