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Acids and bases > Acids and Bases Yr 8 > Flashcards

Acids and Bases Yr 8 Flashcards

1
Q

What is the pH of a neutral solution?

A

pH7

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2
Q

What is the pH of a strong acid? What colour will universal indicator show if put into a strong acid?

A

pH 1-2, red

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3
Q

What is the pH of a strong alkali? What colour will universal indicator show if put into a strong alkali?

A

pH 12-14, purple

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4
Q

What colour will universal indicator show when in contact with a neutral solution?

A

green

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5
Q

Which is the element that is present in all acids?

A

hydrogen

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6
Q

Which is the ion that is present in all acids?

A

H+

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7
Q

Which is the ion that is present in all alkalis?

A

OH- (hydroxide)

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8
Q

What is the definition of an alkali?

A

It is a soluble base.

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9
Q

What is the definition of a base?

A

Something that will neutralise an acid to make a salt

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10
Q

Name two types of insoluble bases

A

oxides and carbonates

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11
Q

Complete the general word equation:

acid + base –>

A

salt + water

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12
Q

Complete the general word equation:

acid + oxide –>

A

salt + water

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13
Q

Complete the general word equation:

acid + alkali –>

A

salt + water

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14
Q

Complete the general word equation:

acid + carbonate –>

A

salt + water + carbon dioxide

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15
Q

Complete the general word equation:

acid + metal –>

A

salt + hydrogen

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16
Q

Complete the general symbol equation:

H+ + OH- –>

A

H2O (water)

17
Q

Name this acid: H2SO4

A

sulphuric acid

18
Q

Name this acid: HCl

A

hydrochloric acid

19
Q

Name this acid: HNO3

A

nitric acid

20
Q

Is this an oxide, hydroxide or carbonate?

NaOH

A

hydroxide

21
Q

Is this an oxide, hydroxide or carbonate?

MgO

A

oxide

22
Q

Is this an oxide, hydroxide or carbonate?

CaCO3

A

carbonate

Acids and bases (1 decks)

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