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Group 2 QP

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Total cards: 7•Content version: v4•Public deck•Updated: 8/1/2026

Card preview (7)

#1
Front (Question)

Why is the melting point of Mg higher than Na? [2]

Back (Answer)

[1] Mg2+ ions are smaller [2] Stronger attraction to delocalised sea of electrons

#2
Front (Question)

What is viewed when NaOH is added to MgCl2? [1]

Back (Answer)

[1] White ppt

#3
Front (Question)

What is viewed when NaOH is added to BaCl2? [1]

Back (Answer)

[1] No reaction

#4
Front (Question)

Why are there different observations when barium chloride (aq) is added separately to magnesium sulphate (aq) and magnesium nitrate (aq)? What is the simplest ionic equation? [2]

Back (Answer)

[1] Barium sulfate is insoluble, barium nitrate is soluble [2] Ba2+ (aq) + SO42- (aq) –> BaSO4 (s)

#5
Front (Question)

What is the equation for the reaction of MgOH with HCl? [1]

Back (Answer)

[1] Mg(OH)2 + 2HCl –> 2H2O + MgCl2

#6
Front (Question)

Why don’t you use water to put out burning magnesium metal? [2]

Back (Answer)

[1] Produces hydrogen [2] Hydrogen is highly flammable

#7
Front (Question)

What is the reagent to distinguish MgCl2 and AlCl3? What does each reaction show? [3]

Back (Answer)

[1] NaOH [2] MgCl2 White precipitate [3] Precipitate dissolves in excess NaOH