Which of these is an indication that a chemical reaction has occured? a. melting of a substance b. boiling of a substance c. formation of a precipitate d. freezing of a substance

What happens to the temperature of a substance when the average kinetic energy of its particles increases?

28. which is not a reason that water is used to store spent fuel rods from nuclear power plants? water increases the speed of the chain reaction in the fuel rods. water protects nuclear power plant workers from the high temperature and radiation of the fuel rods. water acts as a radiation shield to reduce the radiation levels. water cools the spent rods. salts action

What is the percent by mass of magnesium sulfate in mgso4.7h2o