Brainlest if answered right

most automotive pistons contain piston rings.

a. three
b. two
c. one
d. four

Which of these expressions are correct variations of the combined gas law? p1v1t2 = p2v2t1 both

Which of the following would not diffuse through the plasma membrane by means of simple diffusion? 1 oxygen 2 glucose 3 a steroid hormone 4 a lipid soluble vitamin

Which aqueous solution of ki freezes at the lowest temperature? 1) 1 mol of ki in 500. g of water 2) 2 mol of ki in 500. g of water 3) 1 mol of ki in 1000. g of water 4) 2 mol of ki in 1000. g of water