How many molecules are in 47.93 g sample of magnesium nitrate ? Please show The whole work

In which environment would primary succession occur? a forest with a few remaining trees after a recent wildfire an area of exposed rock after a glacier melts away beach that is exposed to the air at low tide an abandoned baseball field in a small town

Which of the following signs of a chemical reaction are observed in the reaction of potassium with water? precipitate formed temperature change smell produced gas produced color change

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