Which statement is the best description of a chemical bond?
a. a chemical bond connects 2 different molecules.
b. a chemical bond holds atoms together.
c. a chemical bond turns molecules into atoms.
d. a chemical bond identifies atoms in a molecule.

Which statement describes the appearance of a temperature-vs.-time graph? a horizontal line shows that the temperature increases at a constant rate over time. a vertical line shows that the temperature decreases at a constant rate over time. horizontal lines where the temperature is constant during phase changes connect upward-sloping lines where the temperature increases. horizontal lines where the temperature increases are connected by upward-sloping lines where the temperature is constant for each phase.

Agas can holds 2.0 gal of gasoline. what is this quantity in cubic centimeters?

What effect does a decrease in temperature have on the overall rate of a chemical reaction? a decrease in temperature decreases . the reaction rate will