Discover Questions

If you started with 3.60g of Copper and reacted it with an excess of nitric acid what mass of copper hydroxide would you expect to recover? If 5sinθ = 3 determine the value of:
1. cos (θ-360)
2. Tan (squared)θ
3. Sin θ x cos θ (all divided by cos (squared θ)? What about oxidation reaction charge? I need to describe two ways I would measure moles in chemistry lab and identify any equipment I would use? If I save 300 dollars every 2 weeks for 6months how much will I have?