Ora had a chemical splash into her eyes. she immediately told her teacher and went to the eyewash station. she then proceeded to wash her eyes out until they no longer hurt, which took about ten minutes. she then returned to her station, cleaned up any chemical spills according to directions, and started her project over. which best describes her error? a-she should not have started over after the chemical spill. b-her teacher should have cleaned the chemical spill. c-she should have washed her eyes for at least fifteen minutes. d-she should have used the safety shower.

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?

Ase your answer to this question on the information below. hydrocarbons and fissionable nuclei are among the sources used for the production of energy in the united states. a chemical reaction produces much less energy than a nuclear reaction per mole of reactant. the balanced chemical equation below represents the reaction of one molecule of a hydrocarbon with two molecules of oxygen. chemical equation: ch4 + 2o2 → co2 + 2h2o + 1.48 × 10−18 jthe nuclear equation below represents one of the many possible reactions for one fissionable nucleus. in this equation, x represents a missing product. nuclear equation: write an isotopic notation for the missing product represented by x in the nuclear equation.

The is a particle with one unit of positive charge a. proton b. positron c. electron d. nucleus awnser quick it is a important science test!