Which of the following are decomposition reactions? 1. CH. (g) + O, (g) – CO, g) + H2O (0) 2. CaO (s) + CO, g) - CaCO, (s) 3. Mg (s) + O2 (g) -
Mgo (s) 4. PbCo, (s) PbO (s) + CO2(g) *
2, 3, and 4
2 and 3
All are decomposition reactions,
4

1) in saturated limewater, [h+ ]=3.98x10-13 m. a) find [oh]-/ b) what is the ph? / c) is the solution acidic, basic, or neutral? / 2) in butter, [h+ ]=6.0x10-7 m. a) find [oh]-/ b) what is the ph? / c) is the solution acidic, basic, or neutral? / 3) in peaches, [oh]=3.16x10-11 m a) find [h+ ]/ b) what is the ph? / c) is the solution acidic, basic, or neutral? / 4) during the course of the day, human saliva varies between being acidic and basic. if [oh]=3.16x10-8 m, a) find [h+ ]/ b) what is the ph? / c) is the solution acidic, basic, or neutral? /

Frictional forces acting on an object are often converted into energy, which causes the temperature of the object to rise slightly.

Iron (3) oxide will decompose in the presence of hydrogen gas and heater to produced iron and digydrogen monoxide white a balanced chemical equation