WILL GIVE BRAINLIEST and 20+ points Heat calculations during phase changes Please explain all 5 questions or just show the work to achieve that answer

Consider the nuclear equation below. 239/94 pu—-> x+ 4/2 he. what is x?

What is the measured amount of a product obtained from a chemical reaction?

What is the magnitude of the force of gravity between to 1000 kg cars which are separated by distance of 25. 0 km on an interstate highway? the force between the two cars will be what