A cell is placed in a salt solution that has the same concentration as the inside of the cell. What will happen to the cell A. The cell will contract
B. The cell will expand slightly
C. The cell will burst
D. The cell will remain the same size

By the way I had to ask again because I f forgot to put the answer choices​

What is the molecular formula of a hydrocarbon with m+ = 166? (write the formula with no subscripts, e.g. c4h10.) what is the sum of rings and double bonds in this compound?

Which of the dna typing techniques do you think you would choose if you had to analyze a dna sample? why?

Which statement best describes the relationship between period and frequency of light waves? a) in wave b the period increases and the frequency decreases from wave a. b) in wave a the period increases and the frequency decreases from wave b. c) in wave b the period is shorter and the frequency is greater than in wave a. d) in wave a the period is shorter and the frequency is greater than in wave b.