How many atoms does dinitrogen tetroxide contain? O A It contains two nitrogen atoms and two oxygen atoms.
contains
OB It contains four nitrogen atoms and two oxygen atoms.
OC It contains two nitrogen atoms and four oxygen atoms.
D. It contains four nitrogen atoms and four oxygen atoms.

Aconcentrated solution of ammonia is 14.8m and has a density of 0.899g/l. what is the concentration of ammonia in this solution in weight percent (%w/w)?

Which three statements represent the benefits of performing experiments using computer simulations?

Substance 33°f 100°f peanut oil solid liquid margarine solid liquid chocolate chips solid liquid which conclusion fits the data in the table? a. heat chemically changes chocolate and margarine. b. all solids become liquid at 100°f. c. removing heat from a substance it to melt. d. matter may change shape when it is heated.