Which of the following has the highest ph?
0.10 m nacl
0.10 m hcl
0.10 m naoh
0.10 m nano2

What is the percentage by mass of silicon (si) in iron aluminum silicate (fe3al2(sio4)3)?

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.)

Balance the following reaction. as2s3 + 9o2 → 2as2o3 + so2