Ice i left out on the counter a. sublimation b. condensation c. evaporation d. deposition e. melting f frezzing

E. Melting

Explanation:

Ice left on a counter at room temperature will melt. This is because ice melts at 0°C and room temperature is around 25°C.

The answer is E. Melting.

Explanation:

Ice left out on the counter will melt in air at room temperature as its freezing point is 32degF.

1. for the first question, we must find the mass of the anhydrous salt, mgso₄. the molar mass for mgso₄·7h₂o is 246.47 g/mol, while that of mgso₄ is 120.37 g/mol.7.834 g mgso₄·7h₂o * 1 mol mgso₄·7h₂o/246.47 g * 1 mol mgso₄/1 mol mgso₄·7h₂o * 20.37 g mgso₄/mol = 0.647 g mgso₄

2. mass of water = mass of sample - mass of anhydrous salemass of water = 7.834 - 0.647 = 7.19 gpercent water in hydrate = 7.19/7.834 * 100 = 91.74%

i do not get it   at all