- 1.1. How many moles in 12g of Carbon?
- A.1
- B.2
- C.3
- D.4

- 2.2. How many moles in 8g of Helium?
- A.1
- B.2
- C.3
- D.4

- 3.3. How many moles in 20g of Calcium?
- A.0.25
- B.0.5
- C.0.75
- D.1

- 4.4. How many moles in 3.9g of Potassium?
- A.0.001
- B.0.01
- C.0.1
- D.1

- 5.5. What is the mass of 30 moles of H2O?
- A.0.6g
- B.1.66g
- C.540g
- D.350g

- 6.6. What is the mass of 5.5 moles of NaCl?
- A.0.094g
- B.10.64g
- C.250.25g
- D.321.75g

- 7.7. What is the identity of element X if 50 moles has a mass of 1950g?
- A.Potassium
- B.Sodium
- C.Calcium
- D.Zinc

- 8.8. What is the identity of element Y if 5.5 moles has a mass of 176g?
- A.Phosphorus
- B.Sulfur
- C.Chlorine
- D.Argon

- 9.9. How much calcium oxide would be produced from the decomposition of 35.0g of calcium carbonate? CaCO3 -> CaO + CO2
- A.0.35g
- B.35.0g
- C.19.6g
- D.10.0g

- 10.10. How much water would be produced from the combustion of 15g of ethane? C2H6 + 3.5O2 -> 2CO2 + 3H2O
- A.27.0g
- B.9.0g
- C.14.0g
- D.21.0g

- 1.Result 1