| Quiz | Reacting masses 1 |
|---|---|
| Name | |
| Result | FAILED |
| Score | 1 / 4 (25%) |
| Passing score | 3.2 |
| Quiz took | 2 min 19 sec |
| Quiz finished at | 2024-10-27 16:22:53 |
Calculate the mass of calcium iodide made when 120 g of calcium is reacted with unlimited iodine. Ca + I2 → CaI2 (Ar Ca = 40, Ar I = 127)
Calculate the mass of beryllium nitrate made when 1512 g of nitric acid is reacted with unlimited beryllium hydroxide. Be(OH)2 + 2HNO3 → Be(NO3)2 + H2O (Ar Be = 9, Ar N = 14, Ar O = 16, Ar H = 1)
Calculate the mass of barium hydroxide made when 153 g of barium oxide is reacted with unlimited water. BaO + H2O → Ba(OH)2 (Ar Ba = 137, Ar O = 16, Ar H = 1.)
Calculate the mass of potassium hydroxide made when 329 g of potassium oxide is reacted with unlimited water. K2O + H2O → 2KOH (Ar K = 39, Ar O = 16, Ar H = 1)