Hydrogen peroxide decomposes slowly into water and oxygen gas at room temperature (20 - 25 °c). which would increase the decomposition rate the most? a. placing the hydrogen peroxide in the refrigerator b. keeping the cap on the bottle of hydrogen peroxide c. storing the hydrogen peroxide bottle away from light d. adding manganese dioxide to the hydrogen peroxide in order to catalyze the reaction

When a septic tank backs up a goes in to clean it out

Most materials are not magnetic because their magnetism has worn off. their magnetic domains are arranged randomly. they lack magnetic fields. earth’s heat has destroyed their magnetism.

For a research project, a student decided to test the effect of the lead(ii) ion (pb2+) on the ability of salmon eggs to hatch. this ion was obtainable from the water‐soluble salt, lead(ii) nitrate, which the student decided to make by the following reaction. pbo(s) + 2 hno3(aq) → pb(no3)2(aq) + h2o losses of product for various reasons were expected, and a yield of 86.0% was expected. in order to have 5.00 g of product at this yield, how many grams of pbo should be reacted? (assume that sufficient nitric acid, hno3, would be used.)