Marine Science (2023/2024) Already Graded A

Marine Science (2023/2024) Already Graded A Acid compound that forms hydrogen ions (H+) in solution Base a compound that produces hydroxide ions in solution (OH-) Ion A charged atom pH scale scale with values from 0 to 14, used to measure the concentration of H+ ions in a solution; a pH of 0 to 7 is acidic, a pH of 7 is neutral, and a pH of 7 to 14 is basic Acid on pH scale 0-just below 7 Base on pH scale just above 7-14 Neutral on pH scale 7 What substance 7 on the pH scale? pure water Salinity A measure of the amount of dissolved salts in a given amount of liquid Salt sodium chloride symbol for sodium chloride NaCL Charge of sodium in salt + positive Why is sodium in salt a positive ion? It lost an electron to the chloride atom Charge of chloride atom - negative Why is the chloride atom in salt an negative charge it gained an electron What do acids taste like? sour What do bases taste like? bitter neutrals are defined as Substances that are not acidic nor basic. They have equal amounts of OH- and H+ OH- hydroxide ion H+ Hydrogen ion The closer the substance gets to 14 on pH scale The stronger the base becomes The closer the substances get to seven The weaker the acid or base becomes The closer the substance gets to 0 on the pH scale the stronger the acid becomes Blood pH range 7.2-7.6 common acids lemons, coffee, tomatoes, pineapple, strawberries common bases Household cleaners, baking soda, plaster, soft soaps, laundry detergent, bleach Polar molecules are attracted to___________ in solution (adhesion) ions ionic bond A chemical bond resulting from the attraction between oppositely charged ions. covalent bond A chemical bond that involves sharing a pair of electrons between atoms in a molecule (water is a covalent bonded molecule)