What do you call a molecule composed of two atoms of the same element?

Abike rider starts from rest and accelerates 28.0 meters down a slope in 5.00 seconds. what is her acceleration? select one: a. 3.21 m/sec2 b. 1.75 m/sec2 c. 9.80 m/sec2 d. 2.24 m/sec2

What occurs during a combustion reaction

The focal length of a lens is determined by the curve of the lens and the material that the lens is made from. (5 points) is this true or false? ?