An atom with a high metallic character usually has a electron affinity and a atomic radius. Select one:

a. low, small
b. high, large
c. low, large
d. high, small

Calcium hydride (cah2) reacts with water to form hydrogen gas: cah2(s) + 2h2o(l) → ca(oh)2(aq) + 2h2(g) how many grams of cah2 are needed to generate 45.0 l of h2 gas at a pressure of 0.995 atm and a temperature of 32 °c?

Which element is the least metallic between cadmium, silver, zinc, or iron?

When electrolyzing copper (ll) chloride, what reaction takes place at the anode? what reaction takes place at the cathode?