Whith of the following numbers is biger than 9.20 x 10-7?

Which compound contains both ionic and covalent bonds? a) hbr b)cbr4 c)nabr d) naoh

How many valence electrons are in atom of radon?

Which of the following is true about the products formed during photosynthesis? (5 points) select one: a. they have the same mass as the mass of reactants. b. they are the same set of compounds as the reactants. c. they have more mass than the mass of reactants. d. they are chemically the same as the reactants.