How are new substances formed? hurry i will appreciate it and mark brain list !

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?

Why does a plastic bottle that is sealed at a high altitude change it’s shape when taken to lower altitude

37.0 °c = °f (human body normal temperature)