For the second-order reaction below, the concentration of the product, B, after 444 seconds is 0.0730 M. If no B is initially present, and the initial concentration of A is 0.744 M, what is the rate constant? 2A --> B rate = k[A]^2

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?