Help if you don’t know the answer for the question just don’t answer and take my points please.

Light waves are as they pass through the

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?

Acompound is isolated from the rind of lemons that is found to be 88.14% carbon and 11.86% hydrogen by mass how many grams of c and h?