A forensic scientist analyzes a sample for sodium arsenate, Na2AsO4(s), a source of arsenic. Calculate the percentage composition of sodium arsenate.

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?

Most metamorphosis processes take place

Which substance can be broken down by chemical means