How many σ bonds are in the structure of the organic molecule below?

What happens when an acid dissolves?

Which sentence about particles in matter is true? a. atoms are present in solids and liquids but not in gases. b. the particles of matter are in constant motion. c. the same kinds of atoms are found in different elements. d. when a solid changes to a liquid, the sizes of the particles change.

What is the effect of returning nuclear reactor cooling water back into bodies of water?