Three hydrogen atoms are replaced by three atoms of this element in an acetic acid derivative to increase its Ka (“K-a”) by 34,000 times. (10[1])A uranium compound with six atoms of this element is a byproduct (10[1])of enrichment. (10[2])A polymer in which each carbon is bonded to two atoms of this element is used to coat stir bars and non-stick pans. This element and hydrogen (10[1])form a binary acid that can etch glass. Carbon, chlorine, and this element name a class (10[1])of volatile compounds that includes refrigerants like (10[1])Freon. (10[1])This element has a value close to 4 on the Pauling scale, as it is the most electronegative (10[1])element. For 10 points, name this lightest halogen commonly added (10[1])to toothpaste. ■END■ (10[2])