Answer:
1. Polar
2 nonpolar
3. Nitrogen or oxygen
4.carbon
5.Repelled by and attracted to
Answer:
length
Explanation:
cm measures length. Think of a ruler.
Answer:
A lot of them.
Explanation:
It would take hundreds of thousands of trees to clear all of the emmisions.
There must be effective collisions between the reacting chemical particles in order for the chemical reaction to occur.