1 Upon heating 139 g MgSO4 · 7 H2O: (a) how many grams of water can be obtained?

(b) how many grams of anhydrous compound can be obtained?

2 How many joules of energy are needed to change 144 g of water at 14.3°C to steam at 100°C?

Aside from human impact, which of the following causes less water vapor production over a small area? (2 pderivartin

Base your answer on the information below and on your knowledge of chemistry. nitrogen dioxide, no2, is a dark brown gas that is used to make nitric acid and to bleach flour. nitrogen dioxide has a boiling point of 294 k at 101.3 kpa. in a rigid cylinder with a movable piston, nitrogen dioxide can be in equilibrium with colorless dinitrogen tetroxide, n2o4. this equilibrium is represented by the equation below. 2no2(g) n2o4(g) + 58kj at standard pressure, compare the strength of intermolecular forces in no2(g) to the strength of intermolecular forces in n2(g).

Which of these best describes an ionic bond?