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aqa a- level chemistry > Inorganic 2 > Flashcards

Inorganic 2 Flashcards

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AP® Chemistry flashcards Periodic Table flashcards
1
Q

What are the metals in period 3

A

Sodium, Magnesium and aluminium

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2
Q

What is the semi metal (metalloid) in period 3

A

Silicon

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3
Q

What are the non metals in period 3

A

Phosphorous, sulfur and chlorine

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4
Q

What is the noble gas in period 3

A

Argon

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5
Q

What are the properties of metals

A

Shiny (when freshly exposed to air)
Conduct electricity
React with dilute acids to give hydrogen and salt

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6
Q

What are the properties of metalloids?

A

Conducts electricity to an extent
Useful in making semi conductor devices

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7
Q

What are the properties of non metals?

A

They don not conduct electricity and they have low melting points

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8
Q

What are the properties of noble gases

A

They are nonreactive and exist as separate atoms

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9
Q

Why are the reactions of elements in period 3 all redox reactions

A

Every element has an oxidation state of 0 and after it has reacted it ends up with a + or - oxidation state

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10
Q

What is the reaction with sodium and water?

A

Its vigorous, the sodium floats on the surface and fizzes rapidly

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11
Q

What is the reaction of magnesium with water?

A

Very slow at room temerture, after some days a few bubbles of hydrogen are formed

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12
Q

What can sodium react with to form sodium hydroxide and whats the equation?

A

Cold water
2Na+ 2H2O —> 2NaOH + H2

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13
Q

What does magnesium react with more readily to form magnesium oxide and hydrogen?

A

Steam
2Na + 2H2O –> Mg(OH)2 +H2

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14
Q

When period 3 elements form oxides what do they do?

A

They form their highest possible oxidation state

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15
Q

What colour flame does sodium produce when it reacts with oxygen whats the equation?

A

Burns with a yellow flame and forms a white solid.

4Na + O2 –> 2Na2O

2Na2O = white solid

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16
Q

What colour flame do magneisum, aluminium and silicon and phosphorous form

A

A white flame

17
Q

What is the equation for magnesium reacting with oxygen?

A

2Mg + O2 –> 2Na2O

18
Q

What is the equation for aluminium reacting with oxygen?

A

4Al + 3O2 –> 2Al2O3

19
Q

What is the equation for silicon reacting with oxygen?

A

Si +O2 –> SiO2

20
Q

What is the equation for phosphorous reacting with oxygen?

A

4P + 5O2 –> P4O10

21
Q

What colour flame does sulfur burn with and what does it produce when it burns with oxygen

A

Burns with a blue flame and it forms sulfur dioxide which is toxic

22
Q

what compounds in period 3 has giant ionic lattices

A

Na2O, MgO and Al2O3

23
Q

What compounds in period 3 have a macro molecular structure

A

SiO2

24
Q

what Compounds in period 3 have simple molecular structures?

A

P4O10 and SO2

25
Q

When ionic oxides react with water what do the form

A

hydroxides

26
Q
A

aqa a- level chemistry (1 decks)

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