2. Balance the following equation: Al+ CuO -> Al2o3 +Cu
4. Choose the answer that shows a correctly balanced equation.
a. Ni(NO3) 2 + 2 NaOH -> Ni(OH) 2 + 4NaNO3
b. Ni(NO3) 2 + 2 NaOH -> Ni(OH) 2 + 2 NaNO3
c. Ni(NO3) 2 + NaOH -> Ni(OH) 2 + 2 NaNO3
6.Balance this equation
NaNO3 + PbO ->Pb(NO3) +Na2O
2007-01-06 10:28:39 · 5 answers · asked by nice too meet you. 4 in Science & Mathematics ➔ Chemistry
2 Al + 3 CuO ---> Al2O3 + 3 Cu
Letter B is the balanced equation
2 NaNO3 + PbO ---> Pb(NO3)2 + Na2O
You have the incorrect formula for Pb(NO3)2. Pb is either a 2+ or a 4+ charge, so the subscript after the NO3 1- must be either a "2" or a "4".
2007-01-06 10:32:24 · answer #1 · answered by physandchemteach 7 · 0⤊ 0⤋
2. 2Al+3CuO===> Al2O3+3Cu
4. answer is b. Ni(NO3) 2 + 2 NaOH -> Ni(OH) 2 + 2 NaNO3
6. answer is
2NaNO3 + 2PbO====> 2Pb(NO3) + 2Na2O
i am a freaking genius
2007-01-06 18:38:56 · answer #2 · answered by Anonymous · 0⤊ 0⤋
I need help also to answer this problem yo Sorry!
2007-01-06 18:31:27 · answer #3 · answered by heavenlli_61 5 · 0⤊ 0⤋
This isn't help. You should do your own homework. Don't cheat yourself out of a good education.
2007-01-06 18:30:38 · answer #4 · answered by Plasmapuppy 7 · 0⤊ 1⤋
B
2007-01-06 18:41:56 · answer #5 · answered by Anonymous · 0⤊ 0⤋