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When two nitrogen atoms combine, they form a

A) Compound

B) Liquid

C) mixture

D) Molecule

In salt water solution,the salt is the blank

Mary is conducting an experiment on how pollution affects plant growth. how can she ensure that her data are reliable?

Given the following information: mass of proton = 1.00728 amu mass of neutron = 1.00866 amu mass of electron = 5.486 × 10^-4 amu speed of light = 2.9979 × 10^8 m/s calculate the nuclear binding energy (absolute value) of 3li^6. which has an atomic mass of 6.015126 amu. j/mol.