A glass of table wine contains: 5% alcohol
7% alcohol
12% alcohol
17% alcohol

Joan writes four numbers on the board in standard form, and then she writes their scientific notation

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.

Glucose (c6h12o6) is an important biological molecule. (round the answer to nearest hundredth.) what is the percent by mass of carbon in glucose?