What do dipole-dipole forces do?
A. Replace covalent bonds with hydrogen bonds
B. Turn nonpolar molecules into solids
C. Hold polar molecules together
D. Hold nonpolar molecules together

The polymer used for the nonstick surface of cooking utensils is 24.0%c and 76%f by mass. what is the empirical formula of this polymer?

Question 3(multiple choice worth 4 points) (04.04 lc) what does it mean when an element is reduced? it empties a valance shell, reducing its atomic radius. it gains electrons, reducing its overall charge. it increases electronegativity, reducing its ability to bond. it loses electrons, reducing its electron number.

8. what happens to matter during a chemical reaction