For the reaction: _H2 +02 → _H20, how many grams of water are produced from 9.75 moles of H2?

Why does his teacher ask him to balance the equation by including the correct coefficient

Water is initially present in a state where its molecules are far apart. during a change of state, its molecules slow down. which change of state has most likely taken place? from a gas to a liquid from a liquid to a gas from a solid to a liquid from a gas to a plasma

The lewis diagrams for magnesium and fluorine are shown below. what is the correct chemical formula for magnesium fluoride? a. mgf b. mg2f c. mgf2 d. mg2f3