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WorksheetsUnit 2 Review
Total questions: 19
Worksheet time: 12mins
What does this illustrate
Elements
Compunds
Mixture of Elements and Compunds
Mixture of Compounds
Which statement is true about compounds?
a pure substance where two or more elements are chemically combined
a homogenous mixture of 2 or more elements
a pure substance containing only one type of atom
a heterogeneous mixture of 2 or more elements chemically combined
What does this pic illustrate?
Element
Mixture of Compunds
Mixture of elemets
Compounds
What is considered the simplest form of matter?
Compounds
Colloids
Solutions
Elements
The chart below lists some substances and their symbols. How many of these substances are examples of elements?
1
2
3
4
What is the relationship between molecules and atoms?
Molecules are combinations of two or more atoms.
Molecules are the parts that make up atoms
Molecules are the gaseous parts of atoms
Molecules are atoms that have a positive charge
In the diagrams provided, the circles of different colors represent the atoms of different elements. Which diagram represents a mixture?
I
II
III
IV
Mixtures are different than pure substances because mixtures-
have lower boiling points
can be separated physically
are less dense than pure substances
contain only one type of atom
Beatriz wants to make a mixture out of her bowl of blueberries. Which of the following would turn her bowl of blueberries into a mixture?
adding more blueberries to the bowl
adding raspberries to the bowl
cutting up the blueberries
mashing the blueberries
Humans absorb oxygen from the air they breathe in and exhale carbon dioxide gas, CO2. Carbon dioxide gas is
an element made of carbon and oxygen atoms.
a solution made of carbon and oxygen atoms.
a compound of carbon and oxygen atoms.
a mixture of carbon and oxygen atoms.
What is being shown in this image?
Element
Compound Molecules
Elemental Molecule
What is being shown in this image?
Element
Compound Molecule
Elemental Molecules
What is being shown in this image?
Element
Compound
Molecule
What is being shown in this image?
Element
Compound
Molecule
What is being shown in this image?
Single Atoms (Element)
Compound Molecule
Diatomic Molecules (Diatomic = 2 of the same atom)
What is being shown in this image?
Single Atoms
Compound Molecules
Elemental Molecules
What is being shown in this image? (more than one may apply)
Elements
Compound Molecules
Elemental Molecules
What is being shown in this image?
Elements and atoms
Compounds and elements
Molecules and compounds
What is being shown in this image?
Pure Substance
Mixture
