Which reaction is a double displacement reaction? Question 25 options: A) 3 Mg + Fe2O3 → 2 Fe + 3 MgO B) 2 KBr + Cl2 → 2 KCl + Br2 C) 2 H2 + O2 → 2 H2O D) 3 Ca(OH)2 + Al2(SO4)3 → 3 CaSO4 + 2 Al(OH)3​

Why is nh3 classified as a polar molecule

What type of reaction is shown below? check all that apply. 2h2o2 → 2h2o + o2 synthesis decomposition combustion

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?