Uses of group 2 magnesium Flashcards

1
Q

Magnesium hydroxide, Mg(OH)2, is partially soluble in

A

water

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2
Q

Magnesium hydroxide, Mg(OH)2, is partially soluble in water and is used in suspension (known as ‘milk of magnesia’) to

A

to neutralise excess acid in the stomach and treat constipation

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3
Q

Magnesium hydroxide, Mg(OH)2, is partially soluble in water and is used in suspension (known as ‘milk of magnesia’) to neutralise excess acid in the stomach and treat constipation

equation

A

Mg(OH)2 (s) + 2HCl (aq) → MgCl2 (aq) + 2H2O (l)

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4
Q

It is safe to use as the magnesium hydroxide as is..

A

only partially soluble making the solution only slightly alkaline (pH ≅ 10) due to the low OH- concentration

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5
Q

Magnesium is also used in the extraction of

A

titanium from its ore, TiO2

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6
Q

TiO2 is heated in a stream of chlorine, in the presence of coke, to produce TiCl4

equation

A

TiO2 (s) + 2C (s) + 2Cl2 (g) → TiCl4 (g) + 2CO (g)

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7
Q

The titanium is extracted from its chloride by reduction with

A

magnesium (sodium can also be used)

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8
Q

The titanium is extracted from its chloride by reduction with magnesium (sodium can also be used) equation

A

TiCl4 (g) + 2Mg (l) → Ti (s) + 2MgCl2 (l)

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