Just a quick question:
Al(OH)3 + 3HNO3 ---> Al + 3NO3 + 3H2O
This reaction is wrong. Balanced perhaps, by atoms, but the products don't exist, or co-exist with each other, or with residual reactants.
Why doesn't the NO3 and Al don't combine to form Al(NO3)3 ? Is it because the NO3 is soluble? I'm just hit by a brain block I guess ... thanks!
Not brain block, your instincts are correct, you just got a little lost in the balancing.
Now, back in the day, they used to say things like "aluminum hydroxide is
soluble in nitric acid", when they should have said, "aluminum hydroxide reacts with nitric acid to form soluble products", could that old fashioned explanation have been what confused you?