Chemistry help 10 points for answer!!!!!!!!!!!!!!!?

Hey guys i have a chemistry test coming up tommorow and i have a couple questions on my study guide that i need help with. I need these as soon as possible so the person who answers will get 10 points! Write the chemical formula of the neutral compound formed from the ions below 1. Cu2+ ions and NO3–... show more Hey guys i have a chemistry test coming up tommorow and i have a couple questions on my study guide that i need help with. I need these as soon as possible so the person who answers will get 10 points!



Write the chemical formula of the neutral compound formed from the ions below

1. Cu2+ ions and NO3– ions

2. Ag+ ions and CrO42– ions




3. There are two possible methods for recovering copper from a solution of copper (II) sulfate, one uses precipitation and the other uses redox.
(
a) Copper(II) ions can be precipitated as copper(II) carbonate.

CuSO4(aq) + Na2CO3(aq) → CuCO3(aq) + Na2SO4(aq)

How many mL of 0.139 M Na2CO3 would be needed to precipitate all of the copper ions in 27.5 mL of 0.170 M CuSO4?
1 answer 1