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exam revison > chemistry exam revison > Flashcards

chemistry exam revison Flashcards

1
Q

WHAT ARE ALKYNES AND WHAT IS ITS FORMULA

A

HYRDOCARBONS THAT CONTAIN A TRIPLE BOND

CnH2n-2

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2
Q

WHAT ARE ALKENES AND WHAT IS ITS FORMULA

A

HYDROCARBONS THAT CONTAIN A DOUBLE BOND

CnH2n

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3
Q

WHAT ARE ALKANES AND WHAT IS ITS FORMULA

A

HYDROCARBONS THAT ONLY CONTAIN SINGLE BONDS BETWEEN CARBON ATOMS
CnH2n+2

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4
Q

WHAT IS A SINGLE COVALENT BOND

A

WHEN ONE PAIR OF ELECTRONS IS SHARED BETWEEN TWO ATOMS

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5
Q

WHAT IS A DOUBLE COVALENT BOND

A

WHEN TWO PAIRS OF ELECTRONS ARE SHARED BETWEEN TWO ATOMS

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6
Q

WHAT IS A TRIPLE COVALENT BOND

A

WHEN THREE PAIRS OF ELECTRONS ARE SHARED BETWEEN TWO ATOMS

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7
Q

WHAT ARE THE FOUR MAIN ELEMENTS INVOLVED IN ORGANIC CHEMISTRY

A

CARBON HYDROGEN OXYGEN NITROGEN

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8
Q

WHY IS CARBON UNIQUE

A

IT CAN FORM MILLIONS OF DIFFERENT STABLE COMPOUNDS

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9
Q

ORGANIC CARBON COMPOUNDS ARE USUALLY BONDED TO WHAT

A

HYDROGEN

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10
Q

WHAT DOES ORGANIC CHEMISTRY REFER TO

A

CARBON BASED COMPOUNDS

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11
Q

WHAT CARBON COMPOUNDS ARE CONSIDERED TO BE IN-ORGANIC

A

CARBON MONOXIDE (CO) AND CARBON DIOXIDE (CO2)

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12
Q

WHAT IS AVAGARDROS NUMBER

A

6.02x10^23

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13
Q

WHAT IS FRACTIONAL DISTILLATION

A

WHEN

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14
Q

WHAT IS AN ATOM

A

THE PARTICLES THAT MAKE UP THE EARTH

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15
Q

WHAT IS A NUCLEUS

A

A TIGHT BUNDLE OF PROTONS AND NEUTRONS

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16
Q

WHAT ELEMENTS ARE IN GROUP VIII (18)

A

GROUP VIII (18)

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17
Q

WHAT ELEMENTS ARE IN GROUP I (1)

A

ALKALI METALS

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18
Q

WHAT ELEMENTS ARE IN GROUP VII (17)

A

HALOGENS

19
Q

WHAT ELEMENTS ARE IN GROUP 3-12

A

TRANSITION METALS

20
Q

WHAT ELEMENTS ARE IN GROUP II (2)

A

ALAKALINE EARTHS

21
Q

WHY DO ATOMS FORM BONDS

A

ATOMS FORM BONDS TO ACHIEVE A STABLE FULL OUTER SHELL (AN OCTET)

22
Q

WHAT BONDING IS FORMED BETWEEN METAL ATOMS

A

METALLIC BONDING

23
Q

WHAT BONDING IS FOUND BETWEEN OPPOSITELY CHARGED IONS

A

IONIC BONDIND

24
Q

WHAT IS THE SHARING OF ELECTRONS BETWEEN NON-METAL ATOMS CALLED

A

COVALENT BONDING

25
Q

WHAT IS COVALENT BONDING

A

THE SHARING OF ELECTRONS BETWEEN NON-METAL ATOMS

26
Q

WHEN METAL ATOMS BOND..

A

METAL CATIONS ARE IN A FIXED POSITION (LATTICE)

27
Q

WHAT HAPPENS TO VALENCE ELECTRONS IN METALLIC BONDING

A

VALENCE ELECTRONS ARE FREE TO MOVE THROUGHOUT THE LATTICE IN A SEA OF DELOCALISED ELECTRONS

28
Q

WHATS THE DIFFERENCE BETWEEN LOCALISED AND DELOCALISED ELECTRONS

A

LOCALISED ELECTRONS STAY IN A FIXED POSITION

DELOCALISED ELECTRONS MOVE AROUND FREELY

29
Q

PROPERTIS OF METALS

A 
MALLEABLE
DUCTILE 
GOOD CONDUCTORS OF ELECTRICITY 
GOOD THERMAL CONDUCTORS 
LUSTROUS 
HIGH MELTING AND BOILING POINTS
30
Q

WHAT HAPPENS WHEN ATOMS GAIN OR LOSE ELECTRONS

A

THEY BECOME ELECTRICALLY CHARGED

31
Q

WHAT HAS TO HAPPEN FOR AN IONIC COMPOUND TO FORM

A

A POSITIVE METAL IONS (CATION) BONDS WITH A NEGATIVE NON-METAL ION (ANION)

32
Q

SOLUBLE SALTS DISOLVE IN WATER TO FORM …

A

AQUEOUS SOLUTIONS

33
Q

WHAT IS A PRECIPITATION REACTION AND WHAT DOES IT FORM

A

WHEN YOU MIX 2 SOLUBLE SALTS TOGETHER

A PRECIPITATE

34
Q 
WHAT ARE THE SYMBOLS FOR 
AQUEOUS 
LIQUID
SOLID
GAS
A

(AQ)
(L)
(S)
(G)

35
Q

ANSPAM

A

ALL NITRATES SODIUM POTASSIUM AMMONIUM IONS ARE ALWAYS SOLUBLE

36
Q

PROPERTIES OF AN IONIC COMPOUND

A

HIGH SOLUBILITY
CONDCUTIVITY
HIGH MELTING POINT
BRITTLE

37
Q

WHAT MAKES UP A CHEMICAL EQUATION

A

REACTANTS —-> PRODUCTS

38
Q

WHAT ELEMENTS EXIST AS DIATOMIC MOLECULES

A

NON-METALS EG H2 O2 N2 F2 Cl2 Br2 I2

39
Q

WHAT TYPE OF COMPOUNDS ARE ALWAYS ELECTRICALLY NEUTRAL

A

IONIC COMPOUNDS

40
Q

WHAT ARE THE 6 TYPES OF REACTIONS

A 
COMBUSTION REACTION
PRECIPITATE REACTION 
COMBINATION REACTION
NUEUTRALISATION REACTION (ACID BASE)
DECOMPOSOTION REACTION
DISPLACEMENT REACTION (DOUBLE)
41
Q

WHAT IS A DECOMPOSITION REACTION

A

WHEN A SINGLE REACTANT BREAKS APART TO FORM SEVERAL PRODUCTS XY –> X + Y

42
Q

WHATS IS A COMBINATION REACTION

A

WHEN THE REACTANTS COMBINE TO FORM A SINGLE PRODUCT

43
Q

WHAT IS A PRECIPITATION REACTIONS

A

ALWAYS FORMS A SOLID

44
Q

WHAT CLASSIFIES AS A NEUTRALISATION REACTION

A

WHEN YOU COMBINE ACID WITH A BASE REACTANT YOU’LL ALWAYS END UP WITH WATER AND SOMETHING ELSE

exam revison (3 decks)

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