What is the symbol for an ion that has 25 protons and 19 electrons

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?

Select the word from the list that best fits the definition the nuclear family into which a person is born or adopted.

When water dissolves sugar, which process is not involved? o dissociation o hydration o surface area of the solute increases sa