Which compound allows the earth to retain heat from the sun?

A)Oxygen

B)Nitrogen

C)Carbon monoxide

D)Carbon dioxide

What volume of a 2.00 m stock solution of naoh is needed to prepare 150. ml of 0.40 m solution?

Enzymes affect the reactions in living cells by changing the

Which of the following is an example of physical change not a chemical change? a) a log gives off heat and light as it burns. b) a tree stores energy from the sun in its fruit. c) a penny lost in the grass slowly changes color. d) a water pipe freezes and cracks on a cold night.