Given the equation 1 C3H8 (g) 3 CO2 (g) + 4 H2O + 2,220 kJ, how much heat is produced when 2.50 mol of O2 react?

In an energy pyramid, which level has the most available energy?

Which statement describes covalent bases? they have hydroxide ions. they produce hydrogen ions. they are often amines. they are named the same as ionic compounds.

How heavy is thanos? a) 3000 lbs b) all of it c) the price of tea in china d) heavy enough