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Worksheets6.5A Independent Practice 1
Total questions: 10
Worksheet time: 50mins
Name
Class
Date
1.
One of the most abundant elements in Earth’s crust is Iron, which is…
a)
an impure substance with the symbol Ir.
b)
an impure substance with the symbol In.
c)
a pure substance with the symbol I.
d)
a pure substance with the symbol Fe.
2.
A student is examining a sample of the element Bromine in a graduated cylinder. If the liquid is composed of only Bromine atoms, what can the student conclude?
a)
The liquid is not made of elements because it is inside a graduated cylinder.
b)
The liquid is made of elements because it is in a liquid state.
c)
The liquid is made of elements, represented by the symbol Br.
d)
The liquid is made of elements, represented by the symbol B.
3.
I received a diamond necklace for my birthday. If the diamond is made of only carbon, what can I determine?
a)
A diamond is not made of elements.
b)
A diamond is made of an element that can be represented with the chemical symbol Di.
c)
A diamond is made of an element that can be represented with the chemical symbol C.
d)
A diamond is made of an element that can be represented by the symbol Ca.
4.
Which of the following is an element?
a)
Air
b)
Water
c)
Salt
d)
Oxygen
5.
Which of the following is an element?
a)
Copper
b)
Copper sulfate
c)
Sulfuric acid
d)
Water
6.
Natalia is planning a party, and gets a tank of pure helium to fill balloons. If the tank is filled with only helium, what can Natalia determine?
a)
Helium is an impure substance.
b)
Helium is a pure substance that can be represented with the chemical symbol He.
c)
Helium is a pure substance that can be represented with the symbol H.
d)
Helium is a pure substance that can be represented with the symbol Hi.
7.
Which of the following is not an element?
a)
Gold
b)
Silver
c)
Salt
d)
Copper
8.
Which of the following correctly compares Iron and Argon?
a)
Iron can be represented with the symbol Fe, and Argon can be represented with the symbol Ar.
b)
Iron can be represented with the symbol Fe, and Argon can be represented with the symbol A.
c)
Iron can be represented with the symbol Ir, and Argon can be represented with the symbol Ar.
d)
Iron can be represented with the symbol I, and Argon can be represented with the symbol A.
9.
Which is true about the elements in the box above?
a)
I and II are elements, represented by the symbols N and C.
b)
I, II, and III are elements represented by the symbols Ne, Cr, and Na.
c)
I and III are elements represented by symbols Cr and So.
d)
II and III are elements represented by Ch and Sr.
10.
Which is true about the substances in the box above?
a)
I, II, and III are all elements. They are represented by the symbols B, Wa, and Zn.
b)
I and II are elements represented by the symbols B and W.
c)
I and III are elements represented by the symbols B and Zn.
d)
II is an element represented by the symbol Wa.
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