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GCSE AQA Chemistry Flashcards > C5 Chemical Change > Flashcards

C5 Chemical Change Flashcards

1
Q

What is the order of reactivity series with electrolysis?

A
  • Pottassium (K)
  • Sodium (Na)
  • Lithium (Li)
  • Calcium (Ca)
  • Magnesium (Mg)
  • Aluminium (Al)
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2
Q

What is the order of reactivity series by reducing with carbon?

A
  • Carbon (C)
  • Zinc (Zn)
  • Iron (Fe)
  • Tin (Sn)
  • Lead (Pb)
  • Hydrogen (H)
  • Copper (Cu)
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3
Q

What is the order of reactivity series with no extraction needed?

A
  • Silver (Ag)
  • Gold (Au)
  • Platinum (Pt)
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4
Q

What is the reactivity series based on?

A

Chemial reaction of metals with oxygen,water and acids

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5
Q

What is the word equation for Metal + Oxygen?

A

Metal + Oxygen —> Metal Oxide

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6
Q

What is the word equation for Metal + Water?

A

Metal + Water —-> Metal hydroxide + Hydrogen

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7
Q

What are the observation for a metal + water reaction?

A
  • Bubbling (Hydrogen gas)
  • Metal solid dissolves and disappears
  • It forms an alkali solution
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8
Q

What is the word equation for *Metal + Acid *? (MASH)

A

Metal + Acid —-> Salt + Hydrogen

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9
Q

What is the formula and suffix of salt when hydrochloric acid is reacted with water?

A

Cl−
Chloride

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10
Q

What is the formula and suffix of salt when nitric acid is reacted with water?

A

NO3-
Nitrate

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11
Q

What is the formula and suffix of salt when sulfuric acid is reacted with water?

A

SO4-2
Sulphate

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12
Q

What is the formula and suffix of salt when phosphoric acid is reacted with water?

A

PO4-3
Phosphate

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13
Q

What are the three types of bases?

A
  • Metal oxide
  • Metal carbonate
  • Metal hydroxide
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14
Q

What are the observation so a metal + acid reaction?

A
  • Metal dissolves
  • Starts to fizz
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15
Q

Oxidation is the ….

A

Loss of electrons
and/or
Gain of Oxygen

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16
Q

Reduction is the …

A

Gain of electrons
and/or
Loss of oxygen

17
Q

What type of reaction is a displacement reaction?

A

RedOx

18
Q

What is the reducing agent?

A

The reactant which oxides

19
Q

What is the oxidising agent?

A

The reactant which goes through reduction.

20
Q

What is the EXACT definition of an ore?

A

A reservoir of metals which are economically worthwhile to extract.

21
Q

What is the name of an iron ore?

A

Haematrite (Fe2O3)

22
Q

What is the name of an aluminum ore?

A

Bauxite (Al2O3

23
Q

What is the general equation for a neutralisation equation?

A

Base + Acid —> Water + Salt
(BAWS)

24
Q

What is the equation for metal carbonate + acid?

A

Metal carbonate + acid —> Carbon dioxide + Water + Salt

25
Q

How is soluble salt formed?

A

1) React the excess acid with some insoluble chemical (metal oxide)
2) Filter off the leftovers
3) Crystalise the product

26
Q

What do acids and alkalis produce in aqueous solutions?

A

Acids produce hydrogen ions (H+)
Alkali produce hydroxide ions (OH¯)

27
Q

What does PH stand for?

A

Potential of Hydrogen

28
Q

What is a weak acid?

A

Weak acid is only partially ionsied in an aqueous solution.

29
Q

What is a strong acid?

A

Strong acid is fully ionised in an aqueous solution

30
Q

What happens as the concentration of hydrogen ions increases?

A

The PH decreases

31
Q

What is LiNO3?

A

Lithium nitrate

32
Q

What is K2CO3?

A

Pottasium carbonate

33
Q

What is MgBr2?

A

Magnesium bromide

34
Q

What is BaSO4?

A

Barium sulfate

35
Q

What metals react with dilute acids but not cold water?

A
  • Magnesium
  • Aluminium
  • Zinc
  • Iron (slow reaction)
  • Lead (slow reaction)
36
Q

Experiment for titration
(DELETE AFTER)

A
  1. Prepare and fill a burette with acid.
  2. Record the initial volume of the acid in a suitable table.
  3. Using a clean, dry pipette, transfer 25.0 cm3 of alkali into a conical flask.
  4. Add four drops of a suitable indicator to the alkali.
  5. Add acid to the alkali, swirling the conical flask to mix.
  6. When the indicator starts to change colour, add the acid dropwise (still swirling) until the end-point is reached.
  7. Record the final volume of acid added.
  8. Repeat until two concordant results are obtained.
37
Q

What is the balanced equation of potassium with water?

A

2K +2H2O —> 2KOH + H2

GCSE AQA Chemistry Flashcards (15 decks)

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