Acids And Bases 1 chapter 24 Flashcards Preview

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Flashcards in Acids And Bases 1 chapter 24 Deck (12):
1

What are alkalis?

They re bases that dissolve in water.

2

Name 3 indicators.

Litmus, methyl orange, phenolphthalein.

3

What give the exact pH of substances?

pH sensors with data loggers or computers.

4

What is neutralisation?

When an acid is counteracted or neutralised by a base.
Acid+base=salt+water

5

When is a salt formed?

It is formed when the hydrogen in an acid is replaced by a metal.

6

What is a base?

It is the chemical opposite to an acid.

7

What does an indicator do?

It shows by means of colour change the acidity or basicity of a substance.

8

What does a pH scale show?

It shows the different levels of acidity and basicity. (0-14.)

9

Give 3 examples of acidic substances.

Battery acid, lemon juice, vinegar.

10

Give 3 examples of basic substances.

Washing soda, toothpaste, oven spray.

11

Give 3 examples of a neutral substance.

Blood, distilled water, milk.

12

Name the 5 types of acid.

Citric, hydrochloric, sulfuric, carbonic, acetic.