Chapter 5 Terminology

Question 1

pH scale

Answer 1

A number scale that indicates how acidic or basic a solution is
Goes up in powers of 10
Not linear it is a logarithmic scale
pH stands for power or potential of hydrogen

Question 2

Acid base indicator

Answer 2

Any substance that changes colour in the presence of an acid or a base
Most popular is litmus paper, plant extract

Question 3

Universal indicator

Answer 3

A mixture of chemicals that changes colours through a wide range of pH bales
Ph meter us even more precise

Question 4

Neutral

Answer 4

Any substance with. pH of 7 and is neither an acid or a base

Question 5

Acid

Answer 5

A substance such that when in an aqueous solution has a ph of over 7

Question 6

Base

Answer 6

A substance that has a ph of more than 7 when in an aurora solution

Question 7

Oxyacids

Answer 7

Compounds formed when a hydrogen ion combines with a poly atomic ion that contains oxygen

Question 8

Neutralization

Answer 8

A chemical reaction between an acid and a base that produces water and a salt

Question 9

Precipitate

Answer 9

A suspension of small solid particles formed during a chemical reaction