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WorksheetsChemistry Midterm Showdown
Total questions: 20
Worksheet time: 20mins
A salad is an example of a __________.
homogenous mixture
solution
heterogeneous mixture
homogenous solution
What group number are the halogens found?
18 (8A)
1
2
17 (7A)
What two types of atoms make a covalent bond?
2 Nonmetals
1 Metal and 1 Nonmetal
2 Metals
2 Noble Gases
A row on the Periodic Table of Elements
family
period
row
isotope
Which element is found in group 2, period 6?
Oxygen (O)
Barium (Ba)
Selenium (Se)
Carbon (C)
The chemical formula for zinc fluoride
ZnF2
Zn2F
ZnF
Zn2F4
What is a physical change?
A change in which a substance undergoes a change in its physical properties is called a physical change.
A change in which a substance undergoes a change in its chemical properties is called a physical change.
How many Aluminum atoms are in Al2O3?
3
5
2
1
When naming ionic compounds, the metal is always named first and the nonmetal is always named second.
True
False
What is the name of group number 1?
halogens
noble gases
alkali metals
alkaline earth metals
The difference between a Physical change and a Chemical change is…
Physical change is only a change to the outside appearance.
Chemical change is when matter is changed into something new.
Atoms are rearranged in chemical changes & not in physical.
All are correct.
Valence electrons are found
in the innermost energy level of an atom
in the middle energy levels of an atom
in the outermost energy levels of an atom
When an atom loses an electron, it becomes a
positive ion
negative ion
neutral ion
neutral atom
What is a subatomic particle with a positive charge that is in the nucleus of an atom?
neutron
proton
electron
valence electron
