How many moles are in 6.80 x 10^23 atoms
of gold, Au?

Apiece of metal with a length of 1.42 cm was measured using four different instruments. which of the following measurements is the most accurate?

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.

Measurements that have similar values are: a. usually accurate b. sometimes accurate c. always accurate d. never accurate