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GCSE Chemistry 🧪 > Topic 6- Acids And Alkalis > Flashcards

Topic 6- Acids And Alkalis Flashcards

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1
Q

How can aqueous solutions be categorised?

A

Acidic
Alkaline
Neutral

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2
Q

Why are the hazard symbols important?

A

The show what precautions we should take and how to handle them

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3
Q

What is the following hazard symbol?
A ball exploding

A

Explosive

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4
Q

What is the following hazard symbol?
A star in a human chest

A

Health hazard

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5
Q

What is the following hazard symbol?
Liquid poured on a surface and hand that is steaming

A

Corrosive

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6
Q

What is the following hazard symbol?
A flame

A

Flammable

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7
Q

What is the following hazard symbol?
A dead fish, barren tree

A

Harmful to the environment

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8
Q

What is the following hazard symbol?
An O/ball on fire

A

Oxidising

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9
Q

What is the following hazard symbol?
Skull and cross bones

A

Toxic

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10
Q

What is the following hazard symbol?
Exclamation mark

A

Hazardous

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11
Q

What is the following hazard symbol?
Looks like a cricket bat

A

Gas under pressure

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12
Q

What do acids all have present?

A

Hydrogen

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13
Q

What makes the solution acidic?

A

When dissolved in water the hydrogen ions are released and they dissociate
It’s the H+ ion that makes the solution acidic

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14
Q

What are 3 examples of acids?

A
  1. Hydrochloride acid
  2. Sulfuric acid
  3. Nitric acid
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15
Q

What is the chemical formula for hydrochloric acid?

A

HCl

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16
Q

What is the chemical formula for sulfuric acid?

A

H2SO4

17
Q

What is the chemical formula for nitric acid?

A

HNO3

18
Q

What do all alkalis contain?

A

The hydroxide ion

19
Q

What makes the solution alkaline?

A

When the alkalis dissolve in start the hydroxide ions are released and dissociate. It is the OH- that makes the solution alkaline.

20
Q

What is the chemical formula for potassium hydroxide?

A

KOH

21
Q

What is the chemical formula for calcium hydroxide?

A

Ca(OH)2

22
Q

What is the chemical formula for sodium hydroxide?

A

NaOH

23
Q

What are 3 examples of alkalis?

A
  1. Potassium hydroxide
  2. Calcium hydroxide
  3. Sodium hydroxide

GCSE Chemistry 🧪 (6 decks)

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