Why is Co2 a compound but H2 is not a compound

What assumption is made about the reason for the change in mass after chewing the gum

How do matter cycles demonstrate the conservation of matter in a system?

What are the [H+] and [OH-] for a substance with a ph of 9.2?

Describe the bond that forms in water between two atoms of hydrogen and one atom of oxygen

Barium-142 is used as a GI radiocontrast agent. After 1.25 hours, 9.25 μg remains in the patient. Determine the original dose given the half-life of Ba-142 is 10.6 minutes. The answer is about 1184 or 1180

What is the net ionic equation for AgNO3 (aq) + Na2SO4 (aq)

What does it take to prove a hypothesis false? O A. It is impossible to prove a hypothesis false O B. At least ten examples O C. One counterexample O D. A poorly stated question

We dissolve 5g of sugar, C12H22O11, in water to make 1L solution. What is the concentration of this solution expressed as molarity.

Explain how the molar mass of a gas affects the rate at which the gas diffuses and effuses

Wat is a redox reaction