Within the main group (A) elements, atomic size generally * A. remains constant within a period
C. increases as you move down a group
D. cannot be predicted

In 1901, thomas edison invented the nickel-iron battery. the following reaction takes place in the battery. fe(s) + 2 nio(oh)(s) + 2 h2o(l) fe(oh)2(s) + 2 ni(oh)2(aq) how many mole of fe(oh)2, is produced when 5.35 mol fe and 7.65 mol nio(oh) react?

What information does a complete ionic equation give that the balanced equation doesn’t show?

If a particle has z = 25 and 23 electrons, what is its charge?