an element with the same atomic no. but different mass no.'s

What is an inter molecular force?

interaction between a molecule in a covalent bond

what is collision theory?

that particles need enough energy to react when they collide

What does a mole want for Christmas?

An atomic mass (he likes masses)

Chrissy wants to know why the graphite in coal conducts electricity

there is 1 free electron that can move

what is the difference between the structure of a diamond and a graphite lattice?

they have different number of covalent bonds

rate of reaction increases with ...

more frequent successful collisions

whay are alloys harder than other metals?

it is harder for the layers of atoms to slide over eachother

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Christmas Chemistry C2 Revision Quiz

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Questions 20

Answers

1
What are isotopes?
variations of carbon (graphite, diamond)
an element with a mass below 1
an element with the same atomic no. but different mass no.'s
compounds of the same element
2
at what temperature can aluminium mixed with crydite be electrolysed?
2050C
700C
850C
650C
3
what's a word that begins with C that explains relationships between atoms, elements etc
Carr
compound
covalent
chemistry
4
What is an inter molecular force?
interaction between a molecule in an ionic bond
interaction between a molecule in a metallic bond
interaction between a molecule in an atomic bond
interaction between a molecule in a covalent bond
5
what is collision theory?
relating to all things to do with energy and particles
that no catalyst is used up due to collision theory
that particles need enough energy to react when they collide
Santa must collide with at least one chimney
6
how early should we go to lunch today?
12:56
12:58
12:51
12:55
7
What does a mole want for Christmas?
A wife (he's lonely)
An atomic mass (he likes masses)
Dirt (to decorate his house)
Collision (bumper cars are his fave)
8
What is a lattice structure?
A regular pattern of elements
A pattern of covalent bonds
an irregular pattern of metallic bonds
A regular pattern of ions
9
What type of electrons enable graphite to conduct electricity?
idk santa
delocalised electrons
electrons that have bonded with protons
10
What technique do we use to identify food additives?
chromography
photochromography
chromophotography
chromatography
11
Chrissy wants to know why the graphite in coal conducts electricity
it has a full outer shell
there is 1 free electron that can move
Santa has magic coal
it's a giant covalent molecular structure
12
what is the difference between the structure of a diamond and a graphite lattice?
one has a covalent bond, the other ionic
they have different number of covalent bonds
there is no difference
13
How many moles are there in a carbon atom?
24
12
6
1
14
The name of a compound containing oxygen will end in which three letters?
-ide
-idk
-ine
-ate
15
rate of reaction increases with ...
more frequent successful collisions
pumpkin soup
increase in the gravitational field
more frequent collisions of electrons
16
whay are alloys harder than other metals?
they contain a mixture of metals so they have a higher mass
the particles contain more energy so have a higher density
it is harder for the layers of atoms to slide over eachother
because they are from the hood
17
graphite.........(finish the sentence)
is soluble in water
has strong forces holding the layers together
does not conduct electricity when solid
has a high melting point
18
what is the formula for the compound 'magnesium hydrogen-carbonate' ?
Mg4C(HO2)3
MgH(C2O)6
MgH(CO3)4
Mg(HCO3)2
19
what are Santa's favourite elements?
Hydrogen and Iodine
Helium and Osmium
Helium and Oxygen
Hydrogen and Oxygen
20
what is aluminium's melting point?
22500
1050
2600
2050

Christmas Chemistry C2 Revision Quiz Flashcards | StudBud