apakah perbezaan antara alur cahaya yang dilihat dari di sisi bekas dengan di belakang bekas? Apakah yang telah berlaku?​

Assume that the variables x and y are inversely related. if k = 18, what is the value of y for each of the following points? be sure and record your data to be used in the following problem.

The modern periodic table has groups.

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.