Chemical Reactions And Physical Changes/Separation And Solubility- Glossary Of Terms

Question 1

Distinguish

Answer 1

To tell if two things are different.

Question 2

Flammable

Answer 2

Easily catches fire if near a flame (e.g. Oxygen)

Question 3

Salt

Answer 3

An ionic compound that forms when an acid reacts with a metal.

Question 4

Soluble

Answer 4

Solid will dissolve to some a solution (some liquids dissolve in liquids)

Question 5

Insoluble

Answer 5

Solid which will not dissolve in solvent, forming either a sediment or a suspension.

Question 6

Suspension

Answer 6

Solid particles don’t dissolve and are suspended in liquid causing cloudiness.

Question 7

Sediment

Answer 7

Solid particles sit st the bottom of the liquid, not mixing with it

Question 8

Solute

Answer 8

The solid that dissolves in a solvent

Question 9

Solvent

Answer 9

The liquid that dissolves the solid

Question 10

Transparent

Answer 10

Allows all light to pass through (i.e. clear)

Question 11

Dissociation

Answer 11

Scientific term for dissolving

Question 12

Polar

Answer 12

Made of a positive and negative charged end so they attract.

Question 13

Ions

Answer 13

They have a positive (+) or negative (-) charge and obey the laws of attraction. They contain electrons and the atoms are neutral.

Question 14

Saturated

Answer 14

The solvent cannot dissolve amuse more solute molecules; we see crystals forming at the bottom of the beaker.

Question 15

Solubility

Answer 15

The amount of solute that dissolves in 100g of solvent at a particular temperature.

Question 16

Filtrate

Answer 16

The liquid that comes through filter paper.

Question 17

Pure substance

Answer 17

There is only that substance; it is not a mixture.

Question 18

Mixture

Answer 18

Something with more than one substance.

Question 19

Residue

Answer 19

Left behind in the filter.