Earth's gravitational potential energy. gpe = mgh = gravity (9.81m/s) mass (kg) x height (m) kinetic energy: ke-12 how would you calculate the gravitational potential energy of a 2 kg bottle of soda falling off of a kitchen table that is 0.76 m tall? o a. (20.76) o b. 2(076327 o c. (2)(0.76)9.8 od. 2(210.767)

answer: they produce more slow than unicellular organisms.

substituting a hydrogen atom with a halogen in a hydrocarbon:

- the single bond remains single. a is wrong.

- the bond with hydrogen is as strong as with a halogen. c is wrong

- a hydrocarbon is saturated if there is no double bond. we do not know that so d is wrong.

- carbon will always have four valence electrons. e is wrong.

by elimination, the correct answer is b. the boiling point of the new compound increases.