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Trimester 1: Elements, Compounds, And Mixtures
Test Description: Elements, Compounds, and Mixtures
Instructions: Answer all questions to get your test result.
1) Nitrogen (N), phosphorous (P), arsenic (As), antimony (Sb), and bismuth (Bi) are elements in the same
A
group
B
table
C
period
D
row
2) Which of the following accurately represents the location of the noble gases on the periodic table of elements?
A
Period 1
B
Group 18
C
Period 1
D
Group 1
3) Vegetable soup is a good example of a(n)
A
heterogenous mixture
B
element
C
homogeneous mixture
D
mixture of elements and compounds
4) Water has the chemical formula
A
H2O
B
CO2
C
CH4
D
O2
5) Which of the following does NOT represent an element?
A
B2
B
H2O
C
Be
D
B2 and H2O
6) Which of the following is TRUE about the element, selenium?
A
It is a nonmetal.
B
all of the above.
C
It has an atomic number of 34.
D
It is located in Group 16 on the periodic table.
7) Which of the following behaves like a metal and a nonmetal?
A
tellurium (Te)
B
carbon (C)
C
lead (Pb)
D
chlorine (Cl)
8) Sodium chloride is the scientific name for table salt. Based on the chemical formula NaCl, sodium chloride is a(n)
A
compound
B
mixture
C
mixture of elements
D
element
9) The air we inhale is primarily composed of hydrogen (H2), oxygen (O2), carbon dioxide (CO2), and argon (Ar). It is therefore a
A
mixture of elements and compounds
B
compound mixure
C
heterogenous mixture
D
mixture of elements
10) In which period does the element, bromine (Br), belong?
A
17
B
none of the above
C
35
D
4
*select an answer for all questions
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