When a substance is heated, the particles gain energy and move apart, increasing the volume. The mass of the substance being heated increases
decreases
varies unpredictably
stays the same

21. consider the following chemical reaction: n2+ o2 2 no if 10.0 g of n2 reacts with excess oxygen then how many grams of no can be formed? a) 10.7 g b) 21.4 g c) 32.9 g d) 42.8 g page 4 of 8

In the lab, ammonia was mixed with water to form ammonium hydroxide. what is/are the reactant(s)? o water and ammonia o ammonia o ammonium hydroxide need

Asolid that forms and separates from a liquid mixture is called