Balance the following equations for a redox reaction that takes place in basic solution.
mno2(s) + naclo3(aq) + naoh(aq) > namno4(aq) + nacl(aq) + h2o(l)
n2o(g) + kclo(aq) + koh(aq) > kcl (aq) + kno2(aq) + h2o(l)
i think i have the answers but i need confirmation.

Calculate the number of kilojoules to warm 125 g of iron from 23.5°c to 78.0°c.

For the reaction shown, find the limiting reactant for each of the following initial amounts of reactants. 4al(s)+3o2(g)→2al2o3(s) a) 1 molal, 1 mol o2 b) 4 molal, 2.6 mol o2 c) 16 molal, 13 mol o2 d) 7.4 molal, 6.5 mol o2

Large helium-filled balloons are used to lift scientific equipment to high altitudes. what is the pressure inside such a balloon if it starts out at sea level with a temperature of 10.0ºc and rises to an altitude where its volume is twenty times the original volume and its temperature is – 50.0ºc ?