If someone knows either of these pls answer!!

Working with si (metric) units for each of the following commonly used measurements, indicate its symbol. liter gram milliliter kilogram meter centigram milligram centimeter kilometer second millimeter milliseconds

An atom of which element reacts with an atom of hydrogen to form a bond with the greatest degree of polarity ?

1. true or false: minerals are inorganic. true false 2. inorganic means that something has never been found alive 3. halite is another name for and is a mineral with a cubic crystal pattern. table salt rock salt