Year 8 science help!!! Chemical reactions!?

Question

In my class we have to learn about chemical reactions.

Aqueous ammonia + copper hydroxide.
[&&]
Iron Filings + Copper Sulphate

} what are the chemical reactions for each of them??

Answer 1

Cu(OH)2(s) + 4NH3(aq) ===> Cu(NH3)4++ + SO4=

Fe(s) + CuSO4(aq) ===> FeSO4(aq) + Cu(s)

Answer 2

Nitroglycerin =) different possibility is smoke bombs (It takes sugar Salt peter and a journey) you may desire to apply Dry ice to make a smoke, say make a waterfall theory, using dry-ice on the backside and get a liquid to pour down onto it. It specifically relies upon on what your father and mom / your self can obtain.