Which one of the following is not equal to 100 meters? 10,000 centimeters 10 hectometers 100,000 millimeters 0.100 kilometers

1 a

2 d

3 a

4 c

explanation:

the number of valence electrons for each molecule or ion is shown beneath the structure. remember hydrogen will not have more than two electrons. this hydrogen is part of a covalent bond (sharing two electrons). a double bond here would cause hydrogen to share four electrons with phosphorus.

the answer is b. dilution

im pretty sure its b