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water/acids/buffers

lesson A section 1.2

QuestionAnswer
molecules that dissociate in water and release hydrogen ions (H+) have a pH level of less than 7. Acids
molecules that either release hydroxide ions (OH–) or take up hydrogen ions (H+). Have a pH level of more than 7. Bases
compound or combination of compounds,that keeps the pH of a solution within its normal limits. Resist changes in pH because of their ability to take up excess hydroxide ions (OH–) or hydrogen ions (H+) Buffer
example of a buffer in the blood. Hemoglobin
oppositely charged poles attract nearby water molecules and create weak bonds called ___. Each water molecule can form up to four hydrogen bonds with neighboring molecules—one on each hydrogen atom and two on the oxygen atom. Hydrogen Bonding
When molecules WILL dissolve in water. Hydrophilic
When Molecules will NOT dissolve in water. Hydrophobic
Lubricant Water
ranges from 0 to 14 and is used to describe the relative acidity or alkalinity of solutions. 7 means neutral, less than 7 is acidic, and more than 7 is basic. pH
positive pole and a negative pole. hydrogen bonds in water attract water molecules to each other, causing them to hold on to each other. results in hydrogen bonding Polarity
Solvent Water
Temperature Regulator Water
Created by: 612690098
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