2 f) Acids, Alkalis & Titrations

Question 1

Acid

Answer 1

Source of hydrogen ions (H+) or proton donor.

Question 2

Base

Answer 2

Neutralises acids by combining with the hydrogen ions in them. Soluble base is called an alkali, source of hydroxide ions (OH-) or proton acceptor.

Question 3

Corrosive

Answer 3

Can damage living tissue.

Question 4

End point

Answer 4

The point at which the indicator changes colour in a titration.

Question 5

Indicator

Answer 5

Substance that has different colours depending on the pH.

Question 6

Ion

Answer 6

Charged particle formed when an atom (or group of atoms) loses or gains electrons.

Question 7

Neutralisation reaction

Answer 7

Reaction in which acids react with bases or alkalis to produce salts.

Question 8

pH scale

Answer 8

Measure of how acidic or how alkaline a solution is.

Question 9

Titration

Answer 9

Used to follow the course of a neutralisation reaction which can be used to find out how much of an acid/alkali reacts with a certain volume of an alkali/acid.

Question 10

Dilute (dilution)

Answer 10

Added water to make a solution weaker.