Glencoe Physical Science

Chapter 20: Chemical Bonds

Self-Check Quiz.-Eng.

1
A compound __________.
A)is a pure element
B)has the same properties as its parts
C)is a combination of two or more elements
D)is composed of only metals
2
In the chemical formula for sucrose (C12H22O11), how many oxygen atoms are there in each molecule?
A)12
B)22
C)11
D)1
3
Chemical compounds are __________.
A)less stable than their individual elements
B)more stable than their individual elements
C)always unstable
D)always stable
4
In general, noble gases react with __________.
A)other noble gases
B)metals
C)water
D)nothing
5
When an atom's outer energy levels are not filled completely, the atom __________.
A)is very stable
B)is a noble gas
C)cannot form a compound
D)can gain, lose, or share electrons
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