A chemical reaction takes place in a closed system. The mass of the reactants before the reaction was grams. What must the mass of the products of the reaction be, according to the law of conservation of mass? A. 35 grams B. 30 grams C. 70 grams D. 25 grams

The twister and runaway train are two coasters at the same amusement park. both coasters start at the same height. the coaster for the twister is twice the mass of the coaster for the runaway train. which roller coaster has greater gravitational potential energy at the start of the ride?

When a scientific theory has been tested and proved by the scientific community, it becomes a law

Which material burns faster? metal aluminum