4. copper metal reacts with nitric acid(hno3) to produce aqueous copper (ii)nitrate, nitrogen dioxide gas and liquid water. a. write the balanced equation for the reaction b. if there are 0.500 moles of copper metal present how many moles of nitric acid are required for the reaction? how many moles of nitrogen dioxide gas are formed?

For a research project, a student decided to test the effect of the lead(ii) ion (pb2+) on the ability of salmon eggs to hatch. this ion was obtainable from the water‐soluble salt, lead(ii) nitrate, which the student decided to make by the following reaction. pbo(s) + 2 hno3(aq) → pb(no3)2(aq) + h2o losses of product for various reasons were expected, and a yield of 86.0% was expected. in order to have 5.00 g of product at this yield, how many grams of pbo should be reacted? (assume that sufficient nitric acid, hno3, would be used.)

How is the way a mixture is combined different from how a compound is combined?

To calculate the molarity of a solution, you need to know the moles of solute and the