2. sc 8.p.8.1
an artist heats a solid iron rod and bends it into a new shape. the iron cools down when the artist is
finished. what happens to the iron atoms as the solid iron rod cools?
a. the iron atoms move more quickly.
b. the iron atoms slow down and stop moving.
c. the iron atoms slow down and vibrate in place.
d. the speed of the iron atoms does not change.

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 element has similar physical and chemical properties as boron.

The equation below shows a chemical reaction. a + b + heat —> c + d according to the law of conservation of energy, which statement is true? a. the reactants absorb heat because they have less energy than the products. b. the products release heat because they have more energy than the reactants. c. the reactants generate heat because they have more energy than the products. d. the products require heat to form because they have less energy than the reactants.