Pull dialogue in marco is it physical or chemical change

Compare and contrast physical changes with chemical changes.

If 90.0 grams of ethane reacted with excess chlorine,how many grams of dicarbon hexachloride would form

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