This chart shows the effect of several solutions on litmus paper. Which solutions are most likely bases? (PLEASE HELP) A. Solutions 4 and 7

B. Solutions 2 and 5

C. Solutions 1 and 3

D. Solutions 3 and 6

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.)

Which activity is an innate behavior

What is the mass of 0.750 mole of aluminum oxide, al2o3?