What is the purpose of a rearview mirror in a car?

the mirror allows the light to be absorbed so the driver will not see any glare.
the mirror allows the light to interfere so the light waves combine to form an image.
the mirror allows the light to be reflected so the objects behind the car can be seen.
the mirror allows the light to be transmitted so the light will not reach the driver's eyes.

Which compound is held together by the electrostatic force between two ions? a. co2 b. cci4 c. h2s d. mgf2

Specific heat refers to the amount of heat required to change 1 gram of a substance by degree(s) celsius

Adiver named jacques observes a bubble of air rising from the bottom of a lake (where the absolute pressure is 3.50 atm) to the surface (where the pressure is 1.00 atm). the temperature at the bottom is 4.00 ∘c, and the temperature at the surface is 23.0 ∘c.what is the ratio of the volume of the bubble as it reaches the surface (vs) to its volume at the bottom (vb)? if jaques were to hold his breath the air in his lungs would be kept at a constant temperature. would it be safe for jacques to hold his breath while ascending from the bottom of the lake to the surface?