Use pie chart to answer the question.

what percent of radiation is absorbed by earth's surface or atmospere?
a) 23%
b) 30%
c) 53%
d) 70%

What happens to the average kinetic energy of a gas when the particles of the gas collide against each other at a constant temperature and volume? explain your answer.

What is the molar mass of ca(cio4)2

Is powdered sports drink ionic or covalent ? 10pts !