Soluble Salts (AQA GCSE Chemistry Combined Science): Flashcards

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Soluble Salts
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Products when metal oxides react with acids

Salt and water

Equation: Metal oxide + acid →

Salt + water

Equation: Metal hydroxide + acid →

Salt + water

Type of reaction: metal oxide/hydroxide + acid

Neutralisation reaction

What are soluble bases called?

Alkalis

Can insoluble bases react with acids?

Yes, to form salt and water

What determines the identity of salt produced?

The metal oxide/hydroxide and acid used

Product salt from KOH+HNO3KOH + HNO_3

Potassium nitrate (KNO3KNO_3)

Product salt from MgO+HNO3MgO + HNO_3

Magnesium nitrate [Mg(NO3)2Mg(NO_3)_2]

What does the base provide in salt formation?

The metal ion

What does the acid provide in salt formation?

The anion (non-hydrogen part)

Which ions form water in these reactions?

H+H^+ from acid, OH−OH^- or O2−O^{2-} from base

Is KOHKOH a soluble or insoluble base?

Soluble base (alkali)

Is MgOMgO a soluble or insoluble base?

Insoluble metal oxide

Applications of salt production reactions

Pharmaceuticals, agriculture, manufacturing

Explore AQA GCSE Chemistry Combined Science Revision Notes by Topics

Reactivity of Metals

Reactions of Acids

Electrolysis

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Reactivity of Metals

Reactions of Acids

Electrolysis

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Reactivity of Metals

Reactions of Acids

Electrolysis

Explore AQA GCSE Chemistry Combined Science Exam Questions by Topics

Reactivity of Metals

Reactions of Acids

Electrolysis

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