The transition metals are involved in:

alloys

coordination complexes

catalysts

all of the above

How many mL of alcohol and how many mL of water are needed to prepare a 35.0% alcohol solution containing 15.0 mL

The mass and volume of each sample differ from the mass and volume of the other samples. Is it possible for each sample to contain 1 mol of each substance? No, because they have different masses. No, because they have different volumes.

What is the ground state shorthand notation for manganese (Mn) ?

A sample of gas occupies 10.0 l at 100.0 torr and 27.0 c. calculate the pressure if the temperature is changed to 127c while the volume remains constant. (133 torr)

Aspirin can be prepared in chemistry laboratory by the reaction of salcylic acid with acetic anhydride, what volume of acetic anhydride (density, 1.0820g/cm3) is required to produce 1kg of aspirin assuming 100% yield

Assume 3 molecules of Fe react according to the following equation. 3Fe + 4H2O Fe3O4 + 4H2 How many molecules of H2 are produced? How many water molecules are required? What is the mole ratio of Fe to H2O?

10.0 mL of a HF solution was titrated with a 0.120 N solution of KOH; 29.6 mL of KOH were required to completely neutralize the HF. Calculate the normality of the HF solution.

The number of grams present in 1.35 mol of Fe is

Which can associate a suspect's gun with a crime?

In which era did the first fish appear? a. Carboniferous b. Paleozoic C. Mesozoic d. Permian