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Chemistry > Group 2 and 7 > Flashcards

Group 2 and 7 Flashcards

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1
Q

What is the colour and state of fluorine ?

A

Pale Yellow
Gaseous

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2
Q

What is the colour and state of chlorine ?

A

Pale Green
Gaseous

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3
Q

What is the colour and state of bromine ?

A

Brown/Orange
Liquid

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4
Q

What is the colour and state of bromine ?

A

Grey
Solid

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5
Q

What is the organic solvent used to show colours of halides more easily ?

A

Hexane

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6
Q

What is an ‘ Oxidising agent ‘ ?

A

Substances that gain electrons

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7
Q

State the ionic equation between chlorine and potassium bromide

A

Cl2 + 2Br- -> 2Cl- + Br2

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8
Q

What colours are observed for both the aqueous and organic solvent between chlorine and potassium bromide ?

A

Aqueous - Yellow
Organic - Orange

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9
Q

What colours are observed for both the aqueous and organic solvent between chlorine and potassium iodide ?

A

Aqueous - Brown
Organic - Purple

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10
Q

What is the reaction between bromine and potassium chloride , why ?

A

No reaction
Bromine will not displace chlorine
Less reactive/oxidising

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11
Q

What colours are observed for both the aqueous and organic solvent between bromine and potassium iodide ?

A

Aqueous - Brown
Organic - Purple

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12
Q

How is bleach formed ?

A

Disproportionation reaction
Between Cl,NaoH,NaClO

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13
Q

What is the equation for the formation of bleach ?

A

2NaoH + Cl2 - > NaClO + NaCl + H2O

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14
Q

State the reaction between an acid and a metal oxide

A

Metal oxide + Acid - > Salt + H20

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15
Q

What are the products a group 2 metal and water ?

A

Metal hydroxide
Hydrogen

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Chemistry (15 decks)

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