Which characteristic below is true of nonmetals? A. They are opaque.

B. They are good conductors of electricity.

C. They have a high luster.

D. They are very brittle.

Which statements are true about electrolysis? check all that apply. electrolysis requires an acid be present. electrolysis is described by two half-reactions. electrolysis is not an industrial process. electrolysis results in commercially valuable products. electrolysis involves the transfer of electrons. reduction results in the loss of electrons. oxidation results in the loss of electrons.

Cucl2 + 2nano3 cu(no3)2 + 2nacl what is the percent yield of nacl if 31.0 g of cucl2 reacts with excess nano3 to produce 21.2 g of nacl? 49.7% 58.4% 63.6% 78.7%

Chen drew a diagram to compare the ways in which different organisms obtain nitrogen. which label belongs to the area marked z?