Terminology for Chem

Question 1

water cycle

Answer 1

the flow of on, above and below the earths surface

Question 2

transipration,

Answer 2

the evaporation of H20 on the leaves of a plant

Question 3

aquifer

Answer 3

the layer of underground rock, that holds considerable quantity of H20, it is an important source of fresh h2O

Question 4

Potable water

Answer 4

water that is suitable for drinking

Question 5

Heterogenus mixture

Answer 5

a mixture that contains 2 or more phases (visible layers) (opaque)

Question 6

Homogenuis mixture

Answer 6

Contains 2 or more substances that are uniformly mixed, only appears to be in one phase. Known as solutions. they are translucent,

Question 7

Concentration

Answer 7

the ratio of the quantity of solute to the quantity of solution/solvent

Question 8

Concentratred solution

Answer 8

a solution with a relativly large quantity of solute dissolved per unit volume solution

Question 9

Dialuted solution:

Answer 9

a solution with relatively a small quantity of solute dissoled per unit volumn of solution

Question 10

Alloy

Answer 10

a solution of 2 or more metals

Question 11

amalgam

Answer 11

a solution of mercury w other metals

Question 12

aqueous solution:

Answer 12

a solution in which waster is the solvent

Question 13

Hydration

Answer 13

the process in which ions are surrounded by water molecules

Question 14

Disscociation

Answer 14

the separation of indivdual ions from an ionic compound as it dissolves in water

Question 15

miscible

Answer 15

abiliyu to mix to form a solution (usually liquid in liquid)

Question 16

inmiscible

Answer 16

cannot mix

Question 17

surfactanct

Answer 17

a compound that can reduce the surface tension of a solvent. a surfactant have both a hydrophobic part and hydrophylic part

Question 18

saturated solution

Answer 18

a solution that contains the max quantity of solute at a given temp and pressure

Question 19

unsaturated solution

Answer 19

a solution in which more solutes can dissolve at a given temp and pressure

Question 20

supersaturated solution

Answer 20

a solution that contains more than max quantity of solute that is should at a given temp and pressure

Question 21

solubility curve

Answer 21

graph of the solubility of a substance over a range of temps

Question 22

thermal pollution

Answer 22

an increase in water temp as a result of a warmer water being added to an aqautic ecosystem

Question 23

pressure

Answer 23

force per unit area

Question 24

amount concentration

Answer 24

amount in moles of solute dissolved per litre of solution

Question 25

stock solution

Answer 25

concentration solution that is used to prep dialuted oslutions for actual use

Question 26

standard solution

Answer 26

a solution for which the precise cocentration is known

Question 27

spectator ions

Answer 27

ions that are not involved in the chem reaction

Question 28

leachate

Answer 28

liquid contaminated with dissolved/susended substances picked up as the liquid passes through old minds/dump sites

Question 29

hard water

Answer 29

water that has a relatively high concentration of calcium ions and magnesium ions

Question 30

soft water:

Answer 30

has a relativetly low concentration of calcium ions and magenesium

Question 31

filtrate

Answer 31

the clear liquid that has solvents and any dissolved liquids collects after a mixture is filtered to remove any solid componets

Question 32

flame test

Answer 32

a diaganostic test used to identify a specfic element

Question 33

oxyacid

Answer 33

an acid that included oxygen in its formula

Question 34

burrette:

Answer 34

graduated glasses tube, delieving known volumnes of liquids titrations

Question 35

pipette

Answer 35

slender tube used for transgering/measuring small quantities of liquids for the lab

Question 36

tirant

Answer 36

the solution in the burrette

Question 37

endpoint

Answer 37

the acid base indicatpr changes colour