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WorksheetsPractice for Quiz 2 and Quiz 3 * Elements,Compounds, and Mix
Total questions: 33
Worksheet time: 25mins
This is an example of a Homogeneous Mixture
Gasoline
Trail mix
Cereal
Oil and Water
This is an example of Heterogeneous Mixture.
Food Coloring and water
Oil and Water
Coffee
Gasoline
C is the symbol for which of the following elements?
Calcium
Chromium
Chlorine
Carbon
Fe is the symbol for which of the following elements?
Iron
Lead
Sodium
Calcium
Element or compound?
Cs2
Element
Compound
Element or compound?
NH3
Element
Compound
Element or Compound?
Cu
Element
Compound
What are the electrons of the "outer shell" of an element called?
VALENCE ELECTRONS
PERIODIC FAMILY
PERIODIC GROUP
ELEMENT
COMPOUND
The atomic number tells you what?
number of electrons
number of protons
number of neutrons
both electrons and protons in an atom.
Water ( H2O) is a compound because-
it is made of two different elements
useful to humans
a gas at room temperature
given off by plants
What makes elements and compounds different from mixtures? Elements & compounds-
have a constant composition (pure substances)
are made of gases
Will not change when heated
conduct electric current
In the diagrams provided, the circles of different colors represent the atoms of different elements. Which diagram represents a mixture?
I
II
III
IV
Which answer correctly matches the diagram with the correct description?
Q- Multiple compounds R-A single element S-An element and a compound T- A single compound
Q- A single element, R- An element and a compound S-A single compound T-Multiple compounds
Q- A single compound, R- A single element, S- Multiple compounds, T- An element and a compound
Q- An element and a compound, R- a single compound, S- a single element, T- multiple compounds
Which of the following is true of oxygen?
Oxygen is an element because its most basic unit is a single type of atom
Oxygen is a compound because its most basic unit is a single type of atom.
Oxygen is a mixture because its most basic unit contains more than one particle.
Oxygen is a compound because its most basic unit contains more than one type of particle.
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.
diatomic
monoatomic
diatomic
monoatomic
diatomic
monoatomic
diatomic
monoatomic
A pure substance that cannot be broken down into simpler substance by a chemical reaction.
compound
element
solid
liquid
The number to the lower right of an element symbol in a compound formula that represents the number of atoms for that element.
subscript
coefficient
element
molecule
Two atoms of the same element bonded together
monatomic
element number
diatomic
compound
Evaporation can be used to seperate...
a solid from a liquid
a liquid from a solid
an evap from an oration
a gas from a solid
What is a Filter?
A filter is a membrane that blocks larger particles from getting through with the water.
A filter is a device that make are water dirty.
A filter is someones mouth.
A filter is a membrane that allows larger particles to go through with the water.
