Match these items. 1. an atom that has gained or lost electrons ion 2. produces oh - ions when added to water acid 3. produces h+ ions when added to water base

How many moles of magnesium is 3.01 x10^22 atoms of magnesium?

Which statement best explains the relationship between an area is geography and the temperature of its surface water

1) which of the following is the best example of a physical change? a) sugar dissolving in tea b) firefly glowing 2) in the combustion of ethane, what is/are the reactants? c2h6 + o2 ==> co2 + h2o a) c2h6 and o2 b) co2 and c2h6