element a is in the same group as element b and the same period as element c. which two of the three elements are likely to have similar properties?

If 1.8 l of water is added to 2.5l of a 7.0 m koh solution, what is the molarity of the new solution

To calculate percent by mass, use the equation below: calculate the percent by mass of each element. %n = % %h = % %o = %

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 4.20 mol fe and 6.70 mol nio(oh) react?