Identify two different habitats in a marine ecosystem. name one organism found in each habitat

Identify two types of chemical bonding in the source of dietary potassium

Suppose you mix one mole of sulfuric acid (h2so4) with 1 mole of sodium hydroxide(naoh). why does the ph of the solution remain below 7? ( explain so i can get better understanding! )

What is the empirical formula of a compound that is 50.7% antimony and 49.3% selenium ?