Oxidation number of Ni in Ni(CO)4 is​

There are main groups in the modern periodic table of elements

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?

Which part of earth’s surface receives the most direct rays from the sun? a) equator b) ocean c) poles d) mountains