Identify the group of elements that does not readily combine with other elements.

1. list three scientific reasons cockroaches may fly.

Joe shines white light into a bowl half full of water at an angle of incident of 27.5°. calculate the angle of refraction in the water given the indices of refraction for air and water are 1.00 and 1.36, respectively.

Astudent reacts 13 moles of iron with 21 moles of oxygen according to the following equation: