So sánh hiệu ứng cảm ứng (-I) của các nhóm sau: a. –F , -OH , -NH2
b. –O+R2 , -N+R3 , -F , -Cl , -Br , -I
c. -SOR , -NO2 , -SO2R

Voltaic cells produce a positive overall charge. what does this indicate? a. the reaction is likely to be endothermic. b. the reaction is spontaneous. c. the reaction is not likely to occur. d. the reaction is not spontaneous.

What does a complete balanced chemical equation include? a. exothermic coefficients b. endothermic coefficients c. valence electrons d. molar coefficients

Light waves can move through , but they travel fastest when they move through a(n) .