1. oxygen is a very reactive element, which element in the atmosphere serves to dilute oxygen and
reduce its reactivity? a. nitrogen b. argon c. water vapor d. carbon dioxide

If a piece of iron is left outside it will gradually turn some what orange. a piece of aluminum however will stay the same color but turn dull explain the difference

If you wanted to move an electron from the positive to the negative terminal of the battery, how much work w would you need to do on the electron? enter your answer numerically in joules.

Which statement is the best definition of an atom? a) anything that has mass and occupies space. b) the smallest particle that has the properties of an element. c) a substance that cannot be broken down chemically into simpler substances. eliminate d) the smallest unit of a substance that exhibits all of the properties characteristic of that substance.