Describe how a measuring cylinder can be used to measure the volume of gas produced

Which of the following observations indicates that there is a small, dense, positively charged part in the center of an atom? some uncharged particles are scattered by a gold foil. all uncharged particles are attracted towards a gold foil. all positively charged particles pass straight through a gold foil. some positively charged particles bounce back from a gold foil.

How many grams of co(g) are there in 74.5 ml of the gas at 0.933 atm and 30o c?

How does a noncompetitive inhibitor reduce an enzyme’s activity?