Which of the following is most likely to increase the rate of a reaction? a. reducing the activation energy b. decreasing the temperature c. decreasing the concentration of the reactant in the reaction vesseld. increasing the volume of the reaction vessel

In a heat engine of 1000 j of heat enters the system and the piston does 500 j of work what is the final internal energy of the system if the inital energy was 2000 j we have to do all of these down here 1)write the equation 2)list out your know variables 3)plug the numbers into the equations 4)solve 5)write your solution statemtn that includes inital energuy and final energuy added

At stp, which substance is the best conductor of electricity? a. nitrogen b. neon c. sulfur d. silver

Helium decays to form lithium. which equation correctly describes this decay?