A saturated solution of potassium chlorate (KClO 3 ) is formed in 100 g of water. If the saturated solution is cooled from 80° C to 50°C how many grams of precipitate are formed ?

Astudent reacts 13 moles of iron with 21 moles of oxygen according to the following equation:

Which statement correctly describes the phosphate ion, ? it is composed of one phosphorus atom and four oxygen atoms covalently bonded together, and there is a –3 charge distributed over the entire ion. it is composed of one phosphorus atom and four oxygen atoms covalently bonded together, and there is a –3 charge on the phosphorus atom. it is composed of one phosphorus atom and four oxygen atoms ionically bonded together, and there is a –3 charge distributed over the entire ion. it is composed of one phosphorus atom and four oxygen atoms ionically bonded together, and there is a –3 charge on the phosphorus atom.

What must be in balance for temperatures to remain constant?