Magnesium reacts with oxygen gas forming magnesium oxide as shown;
2mg(s)+o2(> 2mgo(s)
what mass of o2(g) is needed to completely react with 5.00 g of mg?

Clouds form when water vapor to form small droplets. a. humidifies b. condenses c. evaporates d. precipitates

Which substance can be broken down by chemical means

Which of your 24 wells had indications that a chemical reaction occurred? how were you able to tell that a chemical reaction occurred? which of your 24 wells had indications that a physical reaction occurred? how were you able to tell that a physical reaction occurred? report on both mixing and evaporation. make a general statement about whether your hypotheses were validated or rejected. must your hypotheses be correct for this to be a successful laboratory?