Which of the following is common to both nuclear fusion and nuclear fission? PLZ I NEED ANSWER quickly 1.The fuel must be in the plasma state
2.A chain reaction is needed to start the reaction
3.Matter is converted into energy
4.Temperatures over one million degrees Celsius are needed for the reaction to occur

Lab reagent, hypothesis test.a reference solution used as a lab reagent is purported to have a concentration of 5 mg/dl. six samples are taken from this solution and the following concentrations are recorded: (5.32, 4.88, 5.10, 4.73, 5.15, 4.75) mg/dl.these six measurements are assumed to be an srs of all possible measurements from solution.they are also assumed to have a standard deviation of 0.2, a normal distributin, and a mean concentration equal to the true concentration of the solution.carry out a significance test to determine whether these six measurements provide reliable evidence that the true concentration of the solution is actually not 5 mg/dl.