Which of the following combinations of reactants will result in a synthesis reaction?

cl2 + baf2
mg + hclo3
li + h2o
so2 + h2o

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.

Estimate the molar mass of the gas that effuses at 1.6 times the effusion rate of carbon dioxide.

What is the chemical name of the compound ti2o3?