Which ph value indicates a neutral solution?

solution a (ph of 5)

solution b (ph of 6)

solution c (ph of 3)

solution d (ph of 2)

Which is a chemical property of iron? a. it forms iron oxide (rust) when exposed to moisture and air. b. it is a gray–black metal that is hard to the touch. c. it has a melting point of 2795°f (1536°c). d. it is a good conductor of heat

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

Which other elements contain the same number of outer electrons as sodium