He student placed 10 mL of PbCl2 (saturated solution) in the test tube and added a pinch of lead acetate, Pb(C2H3O2)2. When the test tube was shaken, a white precipitate of PbCl2 formed. How will this affect the concentration of Cl-? increase it
decrease it
remain constant

If 16.00g of hydrogen gas reacts with 126.73g of oxygen, how many grams of water are yielded? (both reactants are completely consumed in the reaction.)

Which statement best summarizes the importance of ernest rutherford’s gold foil experiment? it proved that all of john dalton’s postulates were true. it verified j. j. thomson’s work on the atomic structure. it showed that an electron circles a nucleus in a fixed-energy orbit. it showed that a nucleus occupies a small part of the whole atom.

When microscope slides are stained to show blood cells, the small red blood cells that appear on the slides are much numerous than the large white blood cells. this supports the concept that