Which is one cost of using tides for energy?

a) alteration to tides in area
b) small amounts of energy production
c) inexpensive fuel
d) increased greenhouse gases

The formula is (nh4)2co3

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.

Answer the same molecular formula;