What percent of electricity in the UK will come from renewable sources by 2010? a. 109%
b. 196%
C. 596%
d. 406

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 atom or ion is the largest? a. k b. k+ c. ca d. ca2+ e. li

Why are people not able to skip a dive to the deepest part of the ocean