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Year 8 Science Term 2: Elements, Compounds and Mixtures Flashcards | StudBud
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Year 8 Science Term 2: Elements, Compounds and Mixtures
Year 8 Science Term 2: Elements, Compounds and Mixtures
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Chemistry Revision on Elements Compounds and Mixtures Based on Quiz by Nick.digby
Flashcards
18 cards
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Questions
18
Answers
1
What does this diagram show?
pure compound
mixture of elements
diatomic element
pure element
2
What is the chemical formula for Carbon Dioxide?
NaOH
CH4
HCL
CO2
3
Is this an element, a compound or a mixture?
none of these
mixture
compound
element
4
Naming Compounds: When two different elements combine the ending is usually ...
-ide
-ate
5
Is this an element, a compound or a mixture?
compound
mixture
element
none of these
6
How many atoms are there in total in Calcium carbonate (CaCO3)?
2
5
3
4
7
An element contains ...
just one type of atom
two or more types of atom joined together.
two or more substances that are not joined together.
two or more types of atom
8
What does this diagram show?
pure element
mixture of compounds
mixture of elements
pure compound
9
When two of the same atoms are joined together...
a molecule forms
a mixture forms
a compound forms
an element forms
10
What does this diagram show?
mixture of compounds
pure compound
monoatomic elements
mixture of elements and compounds
11
How many hydrogen atoms are there in water (H2O)?
4
1
2
3
12
How many sodium atoms are there in a salt molecule (NaCl)?
1
2
0
3
13
Is this an element, a compound or a mixture?
compound
element
none of these
mixture
14
A compound contains ...
just one type of atom.
two different substances that are not joined together
two or more types of atom joined together
15
Is water an element, compound or mixture?
compound
element
mixture
none of these
16
What does this diagram show?
mixture of elements
mixture of compounds
pure compound
pure element
17
A mixture contains ...
two different substances that are not joined together
just one type of atom.
two or more types of atom joined together
18
Compounds contain ...
two or more elements chemically joined together
one element
two or more elements mixed together
three elements mixed together
