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Test Description: Part II
Instructions: Answer all questions to get your test result.
1) All of the following are examples of physical changes except ____________.
A
melting
B
evaporating
C
burning
D
solidifying
2) Dot diagrams are used to represent ______________.
A
atomic mass
B
outer electrons
C
protons
D
the structure of the nucleus
3) A characteristic of matter that allows it to change to something new is a __________________.
A
chemical property
B
physical change
C
chemical change
D
physical property
4) The maximum number of electrons in the second energy level of an atom is ___________.
A
eight
B
two
C
ten
D
four
5) The particles that make up an atom are ______________.
A
protons, neutrons, and electrons
B
elements, protons, and electrons
C
protons, neutrons, and nuclei
D
electrons, protons, and nuclei
6) One of the chemical properties of bases is that they __________________.
A
feel slippery
B
corrode metal
C
crumble
D
taste sour
7) In the compound, H2O, the electrons are unequally shared between oxygen and hydrogen, forming ________________.
A
ionic bonds
B
polar bonds
C
cations
D
nonploar bonds
8) Which of the following changes is chemical rather than physical?
A
Glass is shattered.
B
Water is boiled.
C
Aluminum foil is crumpled.
D
Wood is burned.
9) In an atom, electrons ________________.
A
are located in the nucleus
B
travel outside the nucleus
C
are paired with neutronsl
D
are always in the same place in an atom
10) The energy levels of an atom are occupied by ___________________.
A
ions
B
protons
C
neutrons
D
electrons
*select an answer for all questions
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