1cg is equal to (2 points) select one: a. 103 hg. b. 103 g. c. 10-2 mg. d. 10-2 g.

The answer is nitrogen-containing bases

Answerδh > 0explanationc₆h₆  (s)  → c₆h₆ (l)if you are changing it from a solid to a liquid, you are pretty much melting the solid. this requires heat energy. therefore, the reaction is endothermic (takes in energy); the system enthalpy increases as the reaction proceeds: δh > 0.

Zinc contains about 30 protons 

The mole ratio of hydrogen to ammonia is 3: 2.