Science ch11 | Baamboozle - Baamboozle | The Most Fun Classroom Games!

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What are bases?

Another group of chemical. Opposite of acids

0-7 on ph scale

Is an acid (lower the number more acidic it is)

Name some everyday acids

Lemon juice , rain water ,vinegar

2 types of indicators

Litmus paper + universal indicator

7-14 ph scale

Is an alkali , greater the number the greater the alkalinity

What are the bases that will dissolve in water know as?

Alkali eg; sodium hydroxide

Ph 7

Neutral (water)

Reaction of acids

Acids react with many substances . A salt is always produced

What’s neutralisation ?

Neutralisation can be done by acid -base titration

Laboratory bases

Sodium hydroxide , calcium carbonate

Litmus paper

change colour from blue to red in acids and from red to blue In bases

Name 2 laboratory acids

Hydrochloric acid + sulfuric axis

Neutralisation reactions

An acid + base -> a salt + water

Universal indicator

Is a mixture of dyes that change to dif colours depending to how strong the acid or base is

Everyday bases :

Toothpaste + bleach

What are neutral bases

Group of substances that are neither acid or base , including water and salt solution

What does the word acid mean ?

Sour

How can we tell an acid from a base

Test with and indicators

Are bases corrosive ?

Some Bases are as corrosive and dangerous as axis’s

If acid and base were mixed ?

They would react together and neutralise or cancel each other

Acid and metal

Metal + acid -> salt + hydrogen