What types of solutions are made when the temperature increases, then decrease? a. saturated
b. supersaturated
c. unsaturated

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

Δu of , in kj/kg, as it isto k, (a)as a of , (b) at , (c) at .

What is the approximate mass of 25 cm3 of silver, if the density is 10.5 g/cm3? a. 0.42 g b. 2.4 g c. 42 g d. 260 g