Positively-charged particles consisting of two protons and two neutrons emitted by radioactive materials are A) beta particles. B) gamma particles. C) alpha particles. D) positron particles

If you mix chlorine lithium and nickel together which two elements would be the most reactive

5g of ammonium nitrate was dissolved in 60g of water in an insulated container. the temperature at the start of the reaction was 23.0°c and at the end it was 19.0°c. calculate the energy absorbed by the reaction.

In a heat engine if 1000 j of heat enters the system and the piston does 500j of work, what is the final internal energy of the system if the inital energy was 2000 j1.write the equation2.list out your known variables 3. plug the numbers into the equations4.solve 5.write your solution statement that includes initial energy and final energy added.