Write out the electronic structure for a sulphur ion

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?

Nuclear decay is the spontaneous decay of one element into a. an x-ray b. a ray of light c. another element

Describe the magnitude of the buoyant force