Pls help!! I have more questions

The p sub shell can hold up to 8 electrons in an atom. true or false?

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?

The number of moles of a given mass of a substance can be found without knowing its molecular formula or molar mass. true false