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Paul Yr 13 C1 24/25 > 3.2.4 - Period 3 Enhanced > Flashcards

3.2.4 - Period 3 Enhanced Flashcards

1
Q

What is the formula of the compound formed when sodium reacts with oxygen?

A

Na2O

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2
Q

What is the formula of the compound formed when magnesium reacts with oxygen?

A

MgO

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3
Q

What is the formula of the compound formed when aluminium reacts with oxygen?

A

Al2O3

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4
Q

What is the formula of the compound formed when silicon reacts with oxygen?

A

SiO2

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5
Q

What is the formula of the compound formed when phosphorus reacts with oxygen?

A

P4O10

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6
Q

What is the formula of the two compounds formed when sulfur reacts with oxygen?

A

SO2 and SO3

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7
Q

What is the balanced equation for the reaction when sodium reacts with water?

A

2Na + 2H2O –> 2NaOH + H2

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8
Q

What is the balanced equation for the (very slow) reaction of magnesium with cold water?

A

Mg + 2H2O –> Mg(OH)2 + H2

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9
Q

What is the balanced equation for the reaction of magnesium with steam?

A

Mg + H2O –> MgO + H2

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10
Q

What is the balanced equation for the reaction when sodium oxides reacts with water?

A

Na2O + H2O –> 2NaOH

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11
Q

What is the balanced equation for the reaction when magnesium oxide reacts with water?

A

MgO + H2O –> Mg(OH)2

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12
Q

What is the balanced equation for the reaction when aluminium oxide reacts with water?

A

Al2O3 + H2O –> No reaction

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13
Q

What is the balanced equation for the reaction when silicon dioxide reacts with water?

A

SiO2 + H2O –> No reaction

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14
Q

What is the balanced equation for the reaction when P4O10 reacts with water?

A

P4O10 + 6H2O –> 4H3PO4

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15
Q

What is the balanced equation for the reaction when SO2 reacts with water?

A

SO2 + H2O –> H2SO3

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16
Q

What is the balanced equation for the reaction when SO3 reacts with water?

A

SO3 + H2O –> H2PO4

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17
Q

What is the apprximate pH of a solution formed by the reaction of sodium oxide with water?

A

13-14

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18
Q

What is the approximate pH of a solution formed by a reaction of magesium oxide with water?

A

9-10

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19
Q

What is the approximate pH of a solution formed by a reaction of P4O10 with water?

A

1-2

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20
Q

What is the approximate pH of a solution formed by a reaction of SO2 with water?

A

2-3

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21
Q

What is the approximate pH of a solution formed by a reaction of SO3 with water?

A

0-1

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22
Q

What is the structure and bonding in sodium?

A

Giant metallic lattice

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23
Q

What is the structure and bonding in magnesium?

A

Giant metallic lattice

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24
Q

What is the structure and bonding in aluminium?

A

Giant metallic lattice

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25
What is the structure and bonding in silicon?
Giant covalent lattice/Macromolecular
26
What is the structure and bonding in phosphorus?
Simple molecular lattice
27
What is the structure and bonding in sulfur?
Simple molecular lattice
28
What is the structure and bonding in chlorine?
Simple molecular lattice
29
What is the structure and bonding in sodium oxide?
Giant ionic lattice
30
What is the structure and bonding in magnesium oxide?
Giant ionic lattice
31
What is the structure and bonding in aluminium oxide?
Giant ionic lattice
32
What is the structure and bonding in silicon dioxide?
Giant covalent lattice/Macromolecular
33
What is the structure and bonding in P4O10?
Simple molecular lattice
34
What is the structure and bonding in SO2?
Simple molecular lattice
35
What is the structure and bonding in SO3?
Simple molecular lattice
36
Which period three oxide(s) is/are are basic?
Sodium oxides and magneisum oxide
37
Which period three oxide(s) is/are are acidic?
P4O10, SiO2 (slightly), SO2 and SO3
38
Which period three oxide(s) is/are are amphoteric?
Al2O3
39
What is the balanced equation for the reaction when sodium oxide reacts with hydrochloric acid?
Na2O + 2HCl --> 2NaCl + 2H2O
40
What is the balanced equation for the reaction when sodium oxide reacts with sulfuric acid?
Na2O + H2SO4 --> Na2SO4 + H2O
41
What is the balanced equation for the reaction when magnesium oxide reacts with nitric acid?
MgO + 2HNO3 --> Mg(NO3)2 + H2O
42
What is the balanced equation for the reaction when magnesium oxide reacts with phosphoric acid?
3MgO + 2H3PO4 --> Mg3(PO4)2 + 3H2O
43
What is the balanced equation for the reaction when aluminium oxide reacts with hydrochloric acid?
Al2O3 + 6HCl --> 2AlCl3 + 3H2O
44
What is the balanced equation for the reaction when aluminium oxide reacts with sulfuric acid acid?
Al2O3 + 3H2SO4 --> Al2(SO4)3 + 3H2O
45
What is the balanced equation for the reaction when aluminium oxide reacts with sodium hydroxide?
Al2O3 + NaOH + 3H2O --> 2NaAl(OH)4
46
What is the balanced equation for the reaction when silicon oxide reacts with hot concentrated sodium hydroxide?
SiO2 + 2NaOH --> Na2SiO3 + H2O
47
What is the balanced equation when SO2 reacts with a limiting amount of sodium hydroxide?
SO2 + NaOH --> NaHSO3
48
What is the balanced equation when SO2 reacts with an excess of sodium hydroxide?
SO2 + 2NaOH --> Na2SO3 + H2O
49
Which period 3 element has the highest melting point?
Si/Silicon
50
Explain why magnesium oxide has a higher melting point than sodium oxide
Both compounds are giant ionic lattices. MgO contains 2+ ions, Na2O contaisn Na+ ions (both contain O2- ions). Mg2+ ions have a higehr charge than Na+, and also have a smaller ionic radius, so the attraction between Mg2+ ions and O2- ions is stronger than attraction between Na+ ions and O2- ions, so require more energy to overcome
51
Explain why P4O10 has a higher melting point than SO3
Both are simple molecular lattices, with induced dipole-dipole forces between molecules. These are stonger in P4O10, since these molecules have more electrons than SO2, so more energy is required to overcome the intermolecular forces
52
What is the shape around the P atom in H3PO4?
Tetrahedral
53
What is the shape around the S atom in H2SO4?
Tetrahedral
54
What is the shape around the S atom in H2SO3?
Trigonal pyramidal
55
What is the shape around the P atom in PO4^3-?
Tetrahedral
56
What is the shape around the S atom in SO4^2-?
Tetrahedral
57
What is the shape around the S atom in SO3^2-?
Trigonal pyramidal
58
What observation will you see when magneisum reacts with water?
A white precipitate and bubbles of gas slowly form
59
What observation will you see when sodium reacts with water?
An orange flame and rapid formation of gas
60
What pbservation will you see when magnesium reacts with oxygen?
A bright white light and a white powder forms

Paul Yr 13 C1 24/25 (30 decks)

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