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Duplicate of Elements, Compounds & Mixtures Review Flashcards | StudBud
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Duplicate of Elements, Compounds & Mixtures Review
Duplicate of Elements, Compounds & Mixtures Review
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#elements #compounds #mixtures #chemistry #6thgradescience
Flashcards
30 cards
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Questions
30
Answers
1
A _____________ is a combination of two or more substances that are NOT chemically combined.
Compound
Molecule
Mixture
Metal
2
Particles in solutions and colloids ....
cannot scatter light
can settle out
are soluable
cannot be filtered
3
The chemical symbol for iron is
Ir
Fe
I
Ag
4
A solid solution of metals or nonmetals dissolved in metals is known as ...
a metalloid
a suspension
a solvent
an alloy
5
A compound is formed when two or more
different
elements are joined together chemically.
False
True
6
When two or more substances are evenly mixed it forms ......
a compound
a solution
a suspension
an element
7
The substance in which a solute dissolves is....
alloy
solvent
suspension
metalloid
8
Which of the following is a chemical formula?
Na
Sodium Chloride
Helium
NaCl
9
A mixture of liquids can be separted by
distillation
centrifuge
a filter
a magnet
10
These contain either 1 uppercase letter (H)
OR
1 uppercase letter and 1 lowercase letter (He)
Chemical name
Mixtures
Chemical formula
Chemical symbol
11
a suspension is a mixture that has
small dispersed particles that never settle out
no particles
small particles that settle out
large dispersed particles, that settle out
12
In a mixture, each substance keeps its own properties.
True
False
13
Is square D showing an element, compound or mixture?
Compound
Mixture
I don't know!
Element
14
Is square A showing an element, compound or mixture?
Mixture of compounds
Compound
Element
Mixture
15
A molecule is formed when two or more atoms join together chemically.
False
True
16
When particles in substances separate and spread evenly it is called ...
dissolving
insolubility
suspension
concentration
17
Which of the following only contains one type of atom?
Mixture
Chemical Formula
Compound
Element
18
What is shown in box B?
Mixture
Elements
Compounds
Bananas
19
What does square B show- an element compound or mixture?
Element
Mixture
Compound
Trick Question, the limit does not exist!
20
H
2
O is an example of a...
chemical name
chemical formula
common name
subscript
21
Is square C showing an element, mixture or compound?
Element
Mixture
Compound
I don't know!
22
This tells you how many atoms of an element are in a chemical formula.
Submarine
Superscript - H2
Chemical symbol
Subscript - O2
23
This number in front of a formula tells how many molecules of the substance.
equation
Chemical symbol
Subscript 2H2O
Coefficient 2H2O
24
A mixture can be separated by...
Chemical means
Physical means
Windex
Chemical changes
25
All compounds are molecules, but not all molecules are compounds.
False
True
26
The three main classes of elements are...
Colloids, Heterogeneous and Homogeneous
Solids, Liquids and Gases
Metals, Nonmetals and Metalloids
Metallics, Nonmetallics and Dulls
27
The chemical symbol for copper is
CP
Co
C
Cu
28
These can only be separated by chemical means.
Elements
Mixtures
Compounds
29
Carbon Dioxide is an example of a ...
Common name
Element
Chemical formula
Chemical name
30
Poor conductors of heat and electric current are ...
metals
non-metals
metalloids
solutes
