Acids & Bases

Question 1

What are both acids and bases?

Answer 1

Corrosive

Question 2

What are alkalis?

Answer 2

Bases that dissolve in water

Question 3

Examples of everyday acids

Answer 3

Lemon juice, orange juice, vinegar, apples, sour milk, fizzy drinks and tea

Question 4

Example of everyday neutral

Answer 4

Water

Question 5

Examples of everyday bases

Answer 5

Toothpaste, limewater, bread soda, window cleaner, caustic soda

Question 6

Lab acid

Answer 6

Hydrochloric acid

Question 7

Lab bases

Answer 7

Sodium hydroxide

Question 8

What is an indicator

Answer 8

A compound which shows by colour a

Change if something is acidic or basic

Question 9

Example of an indicator

Answer 9

Litmus paper

Question 10

Colours on the indicator to tell if something is acidic basic or neutral

Answer 10

On litmus paper after testing
Blue = Base
Red = Acid
No change = Neutral

Question 11

What does universal indicator do

Answer 11

Will tell if a substance is acid/base/neutral and its PH strength

Question 12

What does the PH scale do

Answer 12

The PH scale tells us how acidic or basic a solution is.

It allows us to quantify (put a number on) a solution

Question 13

Numbers on a PH scale

Answer 13

Grater than 7: alkaline
Less than 7: acidic
7: neutral

Question 14

How can the ph solution be found

Answer 14

A ph meter

Universal indicator solution