Which of these elements is the best conductor
of electricity?
(1) s (3) br
(2) n (4) ni

18. use the activity series to predict whether the following synthesis reaction will occur. write the chemical equations for the reaction if it's predicted to occur. (s) + o2(g) -> *note: it is possible.*

Long term exposure to waves can cause sunburns and skin cancer. a) visible b) infrared c) gamma rays d) ultraviole

What does the mass of 0.7891 mol of ferric oxide (fe2o3)