Which of the following is a redox reaction? Question 5 options:

A)

MgCO3 → MgO + CO2

B)

Mg(OH)2 + 2HCl → MgCl2 + H2O

C)

CuO + H2SO4 → CuSO4 + H2O

D)

3MnO2 + 4Al → 3Mn + 2Al2O3

Which other elements contain the same number of outer electrons as sodium

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?

Which of the following is the correct formula for copper (i) sulfate trihydrate? cuso4 · 3h2o cuso4(h2o)3 cu2so4(h2o)3 cu2so4 · 3h2o