What makes a planet a terrestrial planet

a. is closest to the sun

b. primarily composed of rocks and metal

c. lacks rings

d. has a few, if any, moons

How does a scientist the government? a. the scientist tells people in society what to do. b. the scientist determines the policies that the government spends money on. c. the scientist provides unbiased information to the government. d. the scientist makes laws based on his or her research results.

Suppose you wanted to make 100 grams of water. what is the molar mass of water (h2o)?

If anyone would be able to me out with these three questions it would be these are from the chem 2202 course.