2.4 Period 3

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Total cards: 24•Content version: v4•Public deck•Updated: 8/1/2026

Card preview (24)

Front (Question)

Reaction of sodium with water: Products and observations

Back (Answer)

Products: NaOH and H₂ Observations: - Fizzes - Melts into a ball - Dissolves

Front (Question)

Reaction of magnesium with cold water: Products and observations

Back (Answer)

Products: Mg(OH)₂ and H₂ Observations: - Slow reaction - A few bubbles forming

Front (Question)

Reaction of magnesium with steam: Products and observations

Back (Answer)

Products: MgO and H₂ Observations: - Bright white light - White powder forms (MgO)

Front (Question)

Reaction of Aluminium with water

Back (Answer)

• Al is covered with a layer of Al₂O₃ so does not react • If coating is removed it will react vigorously

Front (Question)

Which group 3 element do not react with water?

Back (Answer)

Silicon, Phosphorus, Sulfur and Argon

Front (Question)

Reaction of chlorine with water: Products and observations

Back (Answer)

Products: HCl and HClO (reaction is an equilibrium) Observations: - Green solution - Bleaches litmus paper

Front (Question)

Metal oxides are _____ compounds

Back (Answer)

basic

Front (Question)

Non-metal oxides are ______ compounds

Back (Answer)

acidic

Front (Question)

Reaction of sodium with oxygen: Products and observations

Back (Answer)

Products: Na₂O Observations: - White solid forms - Yellow flame

#10

Front (Question)

Reaction of magnesium with oxygen: Products and observations

Back (Answer)

Products: MgO Observations: - White solid forms - Bright white light

#11

Front (Question)

Reaction of aluminium with oxygen: Products and observations

Back (Answer)

Products: Al₂O₃ Observations: - White solid forms - White sparkles - Very slow

#12

Front (Question)

Reaction of silicon with oxygen: Products and observations

Back (Answer)

Products: SiO₂ Observations: - Very slow

#13

Front (Question)

Reaction of phosphorus with oxygen: Products and observations

Back (Answer)

Products: P₄O₁₀ Observations: - White flame - White fumes

#14

Front (Question)

Reaction of sulfur with oxygen: Products and observations

Back (Answer)

Products: SO₂ (which reacts with O₂ to from SO₃) Observations: - Blue flame - Fumes / gas with a choking odor

#15

Front (Question)

Structure and bonding of Na₂O, MgO and Al₂O₃

Back (Answer)

Ionic bonding Giant ionic lattice

#16

Front (Question)

Structure and bonding SiO₂

Back (Answer)

Covalent bonding Macromolecular structure

#17

Front (Question)

Structure and bonding of P₄O₁₀ and SO₃

Back (Answer)

Covalent Simple molecular

#18

Front (Question)

Metal oxides of period 3 elements react with water to form solutions containing…

Back (Answer)

hydroxide ions

#19

Front (Question)

Na₂O + H₂O Products and pH

Back (Answer)

Products: NaOH pH: 12-14

#20

Front (Question)

MgO + H₂O Products and pH

Back (Answer)

Products: Mg(OH)₂ pH: 8-10 (magnesium hydroxide is only sparingly soluble)

#21

Front (Question)

Will aluminium oxide react with water?

Back (Answer)

No, aluminium oxide is insoluble

#22

Front (Question)

Non-metal oxides of period 3 elements react with water to form solutions containing…

Back (Answer)

hydrogen ions

#23

Front (Question)

Will SiO₂ react with water?

Back (Answer)

No, it is insoluble

#24

Front (Question)

P₄O₁₀ + H₂O Products and pH

Back (Answer)

Products: H₃PO₄ pH: 0-2