The mass of one mole of carbon dioxide is _ g.
a) 28.01
b) 44.01
c) 384.4
d) 32.00
e) none of the above

Which is true about metals used for jewelry, such as platinum and gold? a. they have low flammability. b. they have low reactivity. c. they have high flammability. d. they have high reactivity.

Which radioisotope is used to date fossils? a. oxygen-16 b. carbon-14 c. uranium-238 d. carbon-12

Aman applies a force of 500n to push a truck 100m down the street how much does he do?