Potassium chlorate decomposes to produce 20 g of solid potassium chloride. Oxygen gas is also produced. Which best describes the
mass of oxygen? A.It is more than the mass of potassium chloride.
B.It is less than the mass of potassium chlorate.
C.It equals the mass of potassium chlorate.
D.It equals the mass of potassium chloride.
When evaporation occurs liquid absorbs heat from the surroundings to get converted to its vapour form as a result, there is an overall decrease in the heat leading to cooling of the liquid.
