A nature of a substance with pH 7.5

A bottle contains 475 ml of insulin at a concentration of 20.0 mg/ml. what is the total mass of insulin in the bottle?

Which term is best defined as a measure of the amount of space a substance occupies?

All of the following are changes brought about by the geological process except

Which of the following is a compound? a. air b. soda c. sterling silver d. water

6. How does surface area affect the rate of a reaction?

The electron configuration for an atom is 1s22s22p2. How many electrons does the atom have? 4 2 6 5

When a piece of sodium carbonate reacts with dilute HCl, a gas X is produced. When gas X is passed through lime water then the solution turns milky and a white precipitate Y is formed a. Write the chemical formula of X, Y and (3) b.

Would precipitation occur when 500 mL of a 0.02M solution of AgNO3 is mixed with 500 mL of a 0.001M solution of NaCl? Show your work.

What compound is always part of an aqueous solution?

How did scientists carry out research before and after the scientific revolution?