Which is a compound?

A. Kr

B. O2

C. Cl2

D. CuF2

What situation do you use a volumetric flask, conical flask, pipette and graduated cylinder? Explain your answer from the accuracy aspects of these apparatus.

In what way did balanced and unbalanced affect the motion of the gymnast

Sickle-cell anemia is a disease of the red blood cells. A person who carries one sickle-cell gene is physically normal, but has the potential to pass on the sickle-cell trait to his or her offspring.

Has a liquid and solid layer

Which of the following has the largest % of sodium, 20g of sodium fluoride, 20g of sodium chloride, or 20g of sodium bromide?

What does lactic acid fermentation convert into lactic acid?

In a schools laboratory, students require 50.0 mL of 2.50 M H2SO4 for an experiment, but the only available stock solution of the acid has a concentration of 18.0 M. what volume of the stock solution would they use to make the required solution

The half-life of radium-226 is 6400 years. If I have 6750 g after 25,000 years, how much radium-226 did I have in my original sample when I started? I had___g in my original sample. Record your answer to the nearest whole number

How many moles of Fe2O3 are in 203 g of the compound?

What is the molar mass of AgF. 51.9g/mol 198.8g/mol 126.87g/mol 99.7g/mol