If 3 moles of a compound use 12 J of energy in a reaction, what is the (triangle symbol) Hreaction in KJ/mol?

A. -4 KJ/mol
B. -0.004 kJ/mol
C. 4 kJ/mol
D. 0.0004 kJ/mol

Which is a character of nuclear fusion but not nuclear fission

What can be added to the examples section of each circle? endothermic: ice melting into water, and a heat pack becoming warm exothermic: a glow stick glowing, and fireworks exploding endothermic: ice melting into water, and an instant ice pack turning cold exothermic: fireworks exploding, and gasoline burning endothermic: a glow stick glowing, and a heat pack becoming warm exothermic: an instant ice pack turning cold, and ice melting into water endothermic: gasoline burning, and an instant ice pack turning cold exothermic: ice melting into water, and an instant ice pack turning cold

The density of an unknown gas at 98°c and 740 mmhg is 2.50 g/l. what is the molar mass of the gas with work showed?