chap 5 key terms

Question 1

anion

Answer 1

Anion- a negatively charged ion, e.g. chloride ion, Cl-

Question 2

aqeuous

Answer 2

containing water

Question 3

brittle

Answer 3

Brittle- shatters when given a sharp tap.

Question 4

cation

Answer 4

Cation- a positively charged ion.

Question 5

chemical formula

Answer 5

Chemical formula- a representation of a substance using symbols for its constituent elements. It shows the ratio of atoms present in the substance.

Question 6

crystal lattice

Answer 6

Crystal lattice- the symmetrical 3D arrangement of atoms or ions inside a crystal.

Question 7

dissolve

Answer 7

Dissolve- To incorporate a solid or gas into a liquid so as to form a solution.

Question 8

electrolyte

Answer 8

Electrolyte- a solution or molten substance that conducts electricity by means of the movement of ions, e.g. a solution of sodium chloride.

Question 9

electron transfer diagram

Answer 9

Electron transfer diagram- a diagram that show electrons move from a metal atom to a non-metal to form ions.

Question 10

electrovalency

Answer 10

the charge of an ion

Question 11

empirical formula

Answer 11

Empirical formula- a formula that shows the simplest whole number ratio of the elements in a compound.

Question 12

full equation

Answer 12

Full equation- a representation of a reaction that uses formulas.

Question 13

gemstone

Answer 13

Gemstone- a precious stone that is usually ionic in structure.

Question 14

ionic bonding

Answer 14

Ionic bonding- a type of chemical bonding that involves the electrostatic attraction between oppositely charged ions.

Question 15

ionic bonding model

Answer 15

Ionic bonding model- a description of the 3D lattice arrangement of positive and negative ions for an ionic compound in the solid state. The model helps to explain the properties of ionic compounds.

Question 16

ionic compound

Answer 16

Ionic compound- a type of chemical compound that involves the electrostatic attraction between oppositely charged ions.

Question 17

ionic equation

Answer 17

Ionic equation- an equation for a reaction that only includes the ions that are involved in the reaction.

Question 18

ionic lattice

Answer 18

Ionic lattice- a regularly repeating 3D arrangement of positively and negatively charged ions.

Question 19

polyatomic ion

Answer 19

Polyatomic ion- an ion that’s made up of more than one element, e.g. the carbonate ion.

Question 20

precipitate

Answer 20

Precipitate- the solid formed during a reaction in which two or more solutions are mixed.

Question 21

precipitation reaction

Answer 21

Precipitation reaction- a reaction between substances in which one of the products is insoluble.

Question 22

solubility

Answer 22

Solubility- a measure of the amount of solute dissolved in a given amount of solvent at a given temperature.

Question 23

solubility table

Answer 23

Solubility table- a reference table that can be used to predict the solubility of ionic compounds.

Question 24

spectator ion

Answer 24

Spectator ion- an ion that remains in solution and is uncharged in the course of a reaction. Spectator ions are not included in ionic equations.