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Science > C7 Reactions Of Acids > Flashcards

C7 Reactions Of Acids Flashcards

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1
Q

In terms of pH, what is an acid?

A

A solution with a pH less than 7

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2
Q

In terms of pH what is a neutral solution?

A

A solution with a pH of 7

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3
Q

In terms of H+ ions, what is an acid?

A

A substance that releases H+ ions when dissolved in water 🌊

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4
Q

What r the names and formulae of the three main acids?

A

Hydrochloric acid = HCl
Sulfuric acid = H2SO4
Nitric acid = HNO3

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5
Q

How do u measure the pH of a substance?

A

Universal Indicator or pH probe

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6
Q

What is a strong acid?

A

An acid where the molecules completely ionise in water 🌊

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7
Q

What is a weak acid?

A

An acid where the molecules partially ionise in water 🌊

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8
Q

What is a salt 🧂?

A

A compound formed when a metal ion takes the place of a hydrogen ion in an acid

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9
Q

Which type of salts 🧂 do sulfuric acid, hydrochloric acid and nitric acid form?

A

Sulfates, chlorides, and nitrates

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10
Q

What are the products of a reaction between a metal 🤘 and an acid ?

A

Salt+Hydrogen

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11
Q

What r the products of a metal hydroxide and an acid?

A

Salt 🧂 + Water 🌊

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12
Q

What r the products of a reaction between a metal oxide and an acid?

A

Salt 🧂 + Water 🌊

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13
Q

What r the products of a reaction between a metal carbonate and an acid?

A

Salt 🧂 + Water 🌊 + Carbon Dioxide

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14
Q

What is a base?

A

A substance that reacts with acids in neutralisation reactions

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15
Q

Alkali?

A

A substance that dissolves in water to form a solution above pH 7

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16
Q

Neutralisation reaction?

A

A reaction between an acid and a base to produce 🌊 water 🌊

17
Q

What is the ionic equation for a reaction between an acid and an alkali?

A

H+(aq)+OH-(aq)➡️H2O(l)

18
Q

How can u obtain a solid salt 🧂 from a solution?

A

Crystallisation

19
Q

When an acid reacts with a metal, which species is oxidised?

A

The metal

20
Q

When an acid reacts with a metal 🤘 which species is reduced?

A

Hydrogen

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