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Chemistry > F321-Ions, Ionic Formulae & Equations > Flashcards

F321-Ions, Ionic Formulae & Equations Flashcards

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0
Q

Define oxidation number

A

A measure of the number of electrons that an atom uses to bond with atoms of a different element

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1
Q

What is formed when an atom loses or gains electrons?

A

Ions

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2
Q

What is the charge of Ag(silver)

A

It is + rather than 2+

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3
Q

What does the group number tell you?

A

The charge of the element (oxidation number)

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4
Q

Show the formula of hydroxide

A

OH-

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5
Q

Show the formula of ammonium

A

NH4+

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6
Q

Show the formula of Sulfate (VI)

A

SO4^2-

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7
Q

Show the formula of Phosphate(V)

A

PO4^3-

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8
Q

Show the formula of Carbonate

A

CO3^2-

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9
Q

Show the formula of Nitrate (V)

A

NO3-

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10
Q

Predict the formula of Calcium Carbonate

A

CaCO3

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11
Q

Predict the formula of Silver(I) Iodide

A

AgI

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12
Q

Name NH4Cl

A

Ammonium Chloride

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13
Q

Name KI

A

Potassium Iodide

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14
Q

Name CaO

A

Calcium Oxide

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15
Q

Is AgCl soluble in dilute NH3?

A

Yes it’s soluble

16
Q

Is AgCl soluble in conc.NH3?

A

Yes it’s soluble

17
Q

Is AgBr soluble in dilute NH3?

A

No, AgBr is insoluble

18
Q

Is AgBr soluble in conc.NH3?

A

Yes It is soluble

19
Q

Is AgI soluble in dilute NH3?

A

No, it is insoluble

20
Q

Is AgI soluble in conc.NH3?

A

No, it is insoluble

21
Q

What colour is AgCl?

A

White

22
Q

What colour is AgBr?

A

Cream

23
Q

What colour is AgI?

A

Yellow

24
Q

Write the equation when a soluble M2CO3 reacts with H2SO4

A

H2SO4(aq) + M2CO3(aq) > H2O(l) + CO2(g) + M2SO4(aq)

25
Q

What is formed when Barium Chloride or Calcium Chloride is added to Sulfate ions?

A

White precipitate

26
Q

Define Alkali

A

A soluble base that release OH- ions when in solution

27
Q

Define Acid

A

Release H+ ions in solution (proton donor)

28
Q

How do you test for an acid/alkali

A

Place litmus paper in the solutoom- if it turns red it’s an alkali, if it turns blue it’s an acid

29
Q

Describe in words how a metal, reacts with protons

A

The metal loses electrons to become positive and the H+ ion from the acid gains these electrons to become H2. It is a redox reaction as it has gained electrons and the metal has been oxidised

30
Q

What type of reaction is it when calcium change decomposes with heat?

A

Thermal decomposition

31
Q

Give the formula of a chloride ion

A

Cl-

32
Q

Give the formula of a magnesium ion

A

Mg2+

33
Q

Give the formula of a Sulfate ion

A

SO4^2-

34
Q

Give the formula of a Nitrate ion

A

NO3-

Chemistry (29 decks)

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