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