Chemistry Assessment Practice Part 1 Question Preview (ID: 12799)
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When two substances are mixed together and after being shaken the two substances remain separate, this would be a:
a) mixture
b) compound
c) solution
d) element
When two substances are mixed together and immediately fizzing, foaming occur, this would be a:
a) compound
b) mixture
c) solution
d) element
When two substances are mixed together and appear to be one substance, this would be a:
a) solution
b) mixture
c) compound
d) element
How many electrons are in Rhodium?
a) 45
b) 103
c) 58
d) 102.9
How many protons are in Iridium?
a) 77
b) 192.2
c) 192
d) 115
How many neutrons are in Mercury?
a) 121
b) 80
c) 201
d) 200.6
How many electrons are allowed in the first electron shell of an atom?
a) 2
b) 8
c) 16
d) 32
How many electrons are allowed in the second electron shell of an atom?
a) 8
b) 16
c) 32
d) 2
How many electrons are allowed in the third electron shell of an atom?
a) 16
b) 2
c) 8
d) 32
How many valence electrons do most atoms want to have, with the exception of Hydrogen?
a) 8
b) 1
c) 2
d) 4
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