About how many grams of KNO3 will precipitate out if a saturated solution is cooled from 50\degree° C to 10\degree° C. 20 15 43 68 35

Astudent conducts an experiment to determine how the amount of water given to a plant affects its growth. what is the independent variable for this experiment?

Did the detergents containing enzymes work better at removing stains than those containing no enzyme? why or why not?

Ireally need ! calcium metal reacts with a potassium chloride solution to form calcium chloride and potassium ions. balance this reaction. (s) + (aq) → cacl2(s) + +(aq) a) 1, 2, 1, 2 b) 1, 2, 1, 1 c) 1, 1, 1, 1 d) 2, 1, 2, 1