Which of the following is not a balanced equation

Calculate the amount of heat produced when 18000 coulombs of charge is transferred in one hour through a potential difference of 50v

What will a positive and a negative charge do if they are separated from each other?

Me pl give an example of a collision in real life. use the law of conservation of energy to describe the transfer of momentum. be sure and discuss the momentum before and after the collision occurs. you will need at least 3 sentences to thoroughly answer this question.