A primary source of hydrocarbons is:

petroleum

natural gas

coal rain

forest materials

Explain following terms briefly: a. Intermolecular potential energy b. The Lennard-Jones potential c. Zeroth law of thermodynamics d. System, closed system, open system, and isolated system e. Equilibrium f.

The number 40 in the name calcium-40 represents A. the atomic number B. the number of protons in the atom C. the sum of the protons and neutrons D. none of these

What makes a theory scientific? this is for earth and space science.

H2 how many elements?

What do you find in an energy shell

A graduated cylinder is filled to the 40.00-mL mark with a mineral oil. The masses of the cylinder before and after the addition of the mineral oil are 124.966 g and 159.446 g, respectively. In a separate experiment, a metal ball bearing of mass 18.

Which element in Group 15 has the greatest metallic character? 1) N 2) P 3) Sb 4) Bi

Choose the statement below that is TRUE. A solution will form between two substances if solute-solvent interactions are of comparable strength to the solute-solute and solvent-solvent interactions.

When liquid silver nitrate and liquid sodium chloride are combined, solid silver chloride forms along with a new liquid, sodium nitrate. Witch substance represents the precipitate? Silver nitrate silver chloride sodium chloride sodium nitrate

The summer season at Arica and Rio de Janeiro Occurs from approximately