Na + Cl2 → 2NaCl The equation is
because the number of
atoms is
on both sides of the arrow.

True or false: the cycle of seasons on the earth is caused by the tilt of the earth on its axis toward and away from the sun.

Which example has gravitational potential energy? a. a horse slowing down from a run b. an apple about to fall from a tree branch c. a bicycle being pedaled down a horizontal path d. beaker sitting on the floor

If steel is more dense that lake water, why can a boat float