What can be said about the reaction 2nh3(g) n2(g) + 3h2(g), h = 92.4 kj/mol?

What layer of the atmosphere is directly above the troposphere?

Achemist 16 drop copper metal from copper chloride solution. the chemist place is 0.50 g of aluminum foil in a solution containing 0.75 g of copper (ii) chloride. a single replacement reaction takes place. which statement explains the maximum amount of copper that the chemist can extract using this reaction?

The biosphere of the earth is made up of what compound? organic or inorganic?