What molecules are found in all or almost all organic compounds?

a. carbon and oxygen

c. carbon and nitrogen

b. hydrogen and oxygen

d. carbon and hydrogen

The periodic law states that the physical and chemical properties tend to repeat periodically when elements are arranged according to what trend

A 0.02877 g sample of gas occupies 10.0-ml at 289.0 k and 1.10 atm. upon further analysis, the compound is found to be 38.734% c and 61.266% f. what is the molecular formula of the compound? (order: c, x)

Explain why raising the temperature of a liquid would speed up diffusion

A species whose oxidation number increases in a reaction is

Can matter exist at a temperature below absolute zero? Why or why not?

How could you separate items that are different densities? explain

Why do elements within a period of the periodic table have different properties

A professional technician maintains and operates specialized scientific equipment. True False

What is the distance from the highest part of one wave to the highest part of the next wave.

Calculate Delta E when 33.0 g of carbon dioxide sublimes at 77.0 K and 1 ATM