Which two substances are among the four major types of organic compounds made by living things?
A. Proteins
B. Potassium
C. Water
D. Carbohydrates
SUBMIT

Nuclear fusion is the source of energy for stars. besides hydrogen, which other element is most likely also common in stars?

Give the set of reactants (including an alkyl halide and a nucleophile) that could be used to synthesize the following ether: draw the molecules on the canvas by choosing buttons from the tools (for bonds and charges), atoms, and templates toolbars, including charges where needed. ch3ch2och2ch2chch3 | ch3

An atom's configuration based on its number of electrons ends at 3p4. another atom has seven more electrons. starting at 3p, what is the remaining configuration? 3p63d34s2 3p43d54s2 3p64s23d3 3p44s23d