A reaction is moving most slowly when its reactant/product mix is: A. 90% product, 10% reactant B. 25% reactant, 75% product C. 10% product, 90% reactant D. 50% reactant, 50% product

answer

fusion: the energy source of stars. the energy released from the collapse of the gas into a protostar causes the center of the protostar to become extremely hot. when the core is hot enough, nuclear fusion commences. fusion is the process where two hydrogen atoms combine to form a helium atom, releasing energy.

hope it

your answer is a. the enthalpy of formation for a pure element in its standard state is always positive.

the answer is c. nacl