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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
evaporating
B
burning
C
solidifying
D
melting
2) Dot diagrams are used to represent ______________.
A
protons
B
atomic mass
C
the structure of the nucleus
D
outer electrons
3) A characteristic of matter that allows it to change to something new is a __________________.
A
physical change
B
chemical change
C
chemical property
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
elements, protons, and electrons
B
electrons, protons, and nuclei
C
protons, neutrons, and nuclei
D
protons, neutrons, and electrons
6) One of the chemical properties of bases is that they __________________.
A
corrode metal
B
crumble
C
taste sour
D
feel slippery
7) In the compound, H2O, the electrons are unequally shared between oxygen and hydrogen, forming ________________.
A
nonploar bonds
B
polar bonds
C
ionic bonds
D
cations
8) Which of the following changes is chemical rather than physical?
A
Glass is shattered.
B
Water is boiled.
C
Wood is burned.
D
Aluminum foil is crumpled.
9) In an atom, electrons ________________.
A
are located in the nucleus
B
are always in the same place in an atom
C
are paired with neutronsl
D
travel outside the nucleus
10) The energy levels of an atom are occupied by ___________________.
A
protons
B
neutrons
C
ions
D
electrons
*select an answer for all questions
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