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Flashcards in EOY 1 Deck (13)
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1

State the definition of a base

A base neutralises an acid.

2

State the definition of an alkali

Chemical opposite of an acid, feels more soapy

3

What is the name of the reaction between an acid and a a base?

Neutralisation reaction

4

A concentrated solution of an acid is _ corrosive then a dilute solution.

more

5

Acids taste _

sour

6

What does an indicator do?

It shows if a solution is acid or alkaline, it contains a dye which shows a different colour code.

7

What's the difference between litmus indicator and Universal indicator?

Litmus indicator - paper that turns blue for alkali, red for acid
Universal indicator - Solution that changes the colour, purple for alkali, red for acid

8

What is the neutral PH number?

7

9

What is the most acidic number and the most alkaline?

acidic = 1
alkali = 14

10

What happens to the PH in a neutralisation reaction?

The PH gets closer to 7

11

Finish the sentence
A base _ acids

neutralises

12

What forms when an acid reacts with a metal element or compound?

Salt

13

Salt definition

A compound that forms when an acid reacts with a metal element or compound