Consider the complex ion [CoCl6]4–. Which response contains all of the following statements that are true, and no false statements? I. The complex is a d 7 complex. II. The Co has two unpaired electrons. III. It is paramagnetic. VI. It is a low spin complex. V. It has tetrahedral geometry. VI. It is a high spin complex.

What three things determine the shape and size of a puddle when water is poured out onto a surface

Which terms are used to identify pure substances

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.)