Chemistry Topic 4- need to finish

Question 1

What is PH scale

Answer 1

Measure of how acidic or alkali a solution is

Question 2

What is the PH of a neutral substance

Answer 2

7

Question 3

What is a indicator

Answer 3

Dye that changes colour depending on whether it’s above or below a certain temperature

Question 4

What do acids form in water

Answer 4

H+ ions

Question 5

What is a base

Answer 5

Substance with a PH greater than 7.

Question 6

What’s an example of a base

Answer 6

Alkali, it dissolves in aree to form a solution with a PH greater than 7

Question 7

What do alkali form in water

Answer 7

OH- ions

Question 8

Acid + base —>

Answer 8

Salt + water

Question 9

Acid + base symbolic equation

Answer 9

H+ + OH- —> H2O

Question 10

What is titration a method of

Answer 10

Analysing the concentration of solutions

Question 11

Tirations allow you to find out

Answer 11

How much acid you need to neutralise a quantity of alkali

Question 12

I hat do acids produce in water

Answer 12

Protons

Question 13

What is the difference between weak and strong acids

Answer 13

Strong acids ionise completely in water. Weak acids do not fully ionise in solutions.