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Ch 6 Structure Of Matter
Test Description: Physical Science
Instructions: Answer all questions to get your test result.
1) which of the following is a compound
A
air
B
salt
C
soup
D
paint
2) the attraction between molecules tends to be ____________ the attraction between ions
A
stronger than
B
equal to
C
weaker than
D
none of the answers are correct
3) sugar has a lower melting point than salt because sugar is made of
A
atoms
B
molecules
C
crystals
D
ions
4) atoms sometimes form bonds to
A
give away protons
B
lose energy
C
become more stable
D
give away neutrons
5) copper atoms are held together by _______ bonds
A
ionic
B
covalent
C
hydrogen
D
metallic
6) sodium has one electron in its outer shell and chlorine has seven electrons in its outer shell. the atoms will form an ______________ bond by ___________ electrons
A
covalent, sharing
B
ionic, sharing
C
ionic, transferring
D
covalent, transferring
7) oxygen atoms have six electrons in their outer shells. when two oxygen atoms bond, they will form a ____ bond by _____ their electrons
A
covalent, transferring
B
ionic, transferring
C
covalent, sharing
D
ionic, sharing
8) a covalent compound made of one sulfur atom and two oxygen atoms would be named
A
sulfur oxide
B
disulfide oxygen
C
sulfur dioxide
D
disulfur oxide
9) because the overall charge in a compound must be __________, the charge of an iron in Fe2O3 can be calculated as 3+
A
1-
B
0
C
2+
D
1+
10) The ____ formula of a compound is written in the simplest whole number ratio of atoms
A
molecular
B
empirical
C
chemical
D
ionic
*select an answer for all questions
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