How many grams are in 0.005 moles of lead (IV) sulfate, Pb(SO­4)2 Group of answer choices 1.5 g 502.74 g 0.0045 g 1.996 g

In the cathode ray tube experiment, j. j. thomson passed an electric current through different gases inside a cathode ray tube in the presence of an electric field. in which two ways did this experiment change scientists’ understanding of the atom?

Joan writes four numbers on the board in standard form, and then she writes their scientific notation

Ahydrogen atom has 1 electron. how many bonds can hydrogen form? a) 1 b) 2 c) 3 d) 4 e) 5