Potassium reacts with hydrochloride acid it makes potassium chloride and hydrogen write the word equation to show this reaction

Answer asap need it by wednesday morning calculate the ph of 0.02m hcl best answer will be brainliest

What would happen to a volleyball left outside in the winter? o o o o a. it would expand. b. it would lose air. c. it would shrink. d. it would explode.

The activation energy for the reaction no2(g)+co2(g)⟶no(g)+co(g) is ea = 300 kj/mol and the change in enthalpy for the reaction is δh = -100 kj/mol . what is the activation energy for the reverse reaction?