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💊🧪Chemistry-Emma🧪💊 > Acids and Redox (4) > Flashcards

Acids and Redox (4) Flashcards

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1
Q

acid

A

releases H+ protons when dissolved in water

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2
Q

strong acid

A

releases all H+ protons when in water, it fully dissociates

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3
Q

weak acid

A

only releases a small amount of H+ protons when i water, and partially dissociates

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4
Q

base

A

metal oxide, metal hydroxide

It neutralises an acid by reacting with the H+ and accepting a proton.

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5
Q

alkali

A

a base that when dissolved in water, releases OH- ions

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6
Q

salt

A

a product of a neutralisation reaction where an H+ in an acid has been replaced by a metal or ammonium ion.

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7
Q

acid + base

A

→ salt + water

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8
Q

acid + alkali

A

→ salt + water

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9
Q

acid + metal carbonate

A

→ salt + water + carbon dioxide

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10
Q

acid + metal

A

→ salt + hydrogen

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11
Q

hydrochloric acid (HCl)

A

chloride

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12
Q

sulphuric acid (H2SO4)

A

sulphate

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13
Q

nitric acid (HNO3)

A

nitrate

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14
Q

phosphoric acid (H3PO4)

A

phosphate

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15
Q

ethanoic acid (CH3COOH)

A

ethanoate

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16
Q

titration

A

technique used with a burette and a pipette. Put acid in burette, put alkali in flask with indicator. See it go from purple to colourless, that’s the end point. Can calculate concentration

17
Q

concordant

A

result that are within 0.1cm3 of each other

18
Q

oxidation numbers in elements

A

always zero

19
Q

oxidation numbers for compounds or ions

A

the number of their charge is their oxidation number e.g. O2 is -2

20
Q

sum of oxidation numbers

A

total number of charge

21
Q

redox reaction

A

oxidation and reduction happening at the same time

22
Q

oxidation

A

addition of oxygen, loss of electrons or increase of oxidation numbers

23
Q

reduction

A

reduction of oxygen, gain of electrons or decrease in oxidation number

24
Q

percentage uncertainty

A

uncertainty/measurement x100

💊🧪Chemistry-Emma🧪💊 (25 decks)

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