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WorksheetsReview Element Compound and Mixture
Total questions: 50
Worksheet time: 38mins
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 illustrate
Elements
Compunds
Mixture of Elements and Compunds
Mixture of Compounds
What does this pic illustrate?
Element
Mixture of Compunds
Mixture of elemets
Compounds
What has no chemical symbol or formula?
Elements only
Compounds only
All Pure substances
Mixtures
Which of the following is matched incorrectly.
Air: compound
Steel alloy: homogeneous mixture
Glucose (C6H12O6): compound
Cookies & Cream: heterogenous mixture
contains 2 or more substances that are physically combined
element
compound
mixture
diagram "d" is an example of a(n)
element
compound
mixture
Which contains only elements?
A
B
C
D
sometimes with electricity
one carbon (C)
two oxygen (O)
(rust) made up of?
3 oxygen
What element has the chemical symbol - S?
Sodium
Sulfur
Silicon
Silver
What element has the chemical symbol - K?
Sodium
Krypton
Potassium
Tin
A majority of elements are _____ at room temperature.
Gas
Liquid
Solid
The Liquid metal in room temperature-
Mercury
Bromine
Iron
Caesium
Which element is the most common in the universe and is also the lightest of all the elements?
Helium
Carbon
Oxygen
Hydrogen
This element is the most abundant naturally occurring gas in our atmosphere.
Oxygen
Carbon
Nitrogen
Argon
Diamonds are made of what element that is commonly found in life forms?
Nitrogen
Carbon
Aluminum
Phosphorus
Which two elements have properties in common?
Nitrogen and Phosphorous
Oxygen and Nitrogen
Sulfur and Nitrogen
These elements are in a:
group
period
The period for magnesium is ___________.
3
2
4
5
Carbon is in group number______.
The list which contains only metals is .......
aluminium, copper, nitrogen
iron, oxygen, hydrogen
iron, silver, aluminium
iron, sulphur, copper
The property of metal by which it can be drawn into wires is
sonority
ductility
malleability
conductivity
Select the phrase that identifies where METALS are found on the periodic table
on the zig-zag line
on the right of the zig-zag line
on the left of the zig-zag line
on the left and right sides of the zig-zag line
Based on their positions, what can be concluded about the shaded elements?
Na is a good conductor of electricity, and Br is easily shaped.
Na is shiny, and Br is a good conductor of electricity.
Na is easily pulled into wires, and Br is a poor conductor of electricity.
Na is a poor conductor of electricity, and Br is easily shaped.
Which gas is used in balloons?
Helium
Argon
Neon
Krypton
What element is located in period 2, group 13?
Ca
B
Mn
K
What element is located in period 3, group 16?
S
P
K
C
I am essential to plant life. You can find me in fertilizers. Most importantly, I make up most of the air (80%.) What am I?
Hydrogen
Nitrogen
Oxygen
Carbon dioxide
I am found in stars and the Sun. Very flammable, I am the lightest of all the elements. What am I?
Helium
Oxygen
Nitrogen
Hydrogen
I am very important for good dental health. Added to drinking water, I protect your teeth and help prevent decay. I also can be used to form Teflon - a nonstick coating found on pots and pans. What am I?
Silicon
Aluminum
Magnesium
Fluorine
I am a very strong, yet light structural material. People use me to build planes, make foil, and tin cans. (Don't be fooled by what I am!) I also make up a large part of Earth's crust. What am I?
Sodium
Aluminum
Fluorine
Magnesium
