Unit 2 Vocab - Properties of Water Flashcards Preview

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Flashcards in Unit 2 Vocab - Properties of Water Deck (23):
1

Equal sharing of the valence electrons

Nonpolar covalent bond

2

Unequal sharing of the valence electrons

Polar covalent bond

3

A type of chemical bond in which a hydrogen atom has a weak bond with electronegative atoms

Hydrogen bond

4

Having a strong affinity for water

Hydrophilic

5

Having little or no affinity for water

Hydrophobic

6

A force existing in the surface of a body, especially a liquid, tending to minimize the area of the surface

Surface tension

7

The amount of heat required to raise the temperature of 1 gram of a substance by 1 degree Celsius

Specific heat

8

The amount of heat absorbed by a liquid at its boiling point that completely converts the material to gas

Heat of vaporization

9

The condition where there is opposing physical properties at differing points, especial magnetic poles or electric charge

Polarity

10

The molecular force between particles within a substance that acts to unite them

Cohesion

11

The molecular force of attraction within a substance to a completely different substance

Adhesion

12

A uniform mixture of one or more solutes dissolved in a solvent

Solution

13

A material composed of 2 or more elements or compounds that are physically mixed together but not chemically combined (not uniform)

Mixture

14

A substance that is a mixture of water and non-dissolved material

Suspension

15

The substance dissolved in a given solution

Solute

16

The substance that is responsible for dissolving a solute

Solvent

17

Provides a measurable scale of hydrogen protons in a solution, ranges from 0-14 to describe the acidity or alkalinity of a solution

pH Scale

18

The tendency of a system, especially that of higher animals, to maintain internal stability because of coordinated responses resulting from a stimulus

Homeostasis

19

Proton donor, forms H+ ions in a solution

Acid

20

Proton acceptor, forms OH- ions in a solution

Base

21

A compound that is added to a system to resist changes in pH

Buffer

22

A hydrogen atom containing no electrons, H+

Hydrogen proton

23

An ion composed of O and H, OH-

Hydroxide ion