H.W

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10/27/2018
H.W
1
the
valence electrons for Na 11 are 3 electrons true
false
2
Atoms in the same group have same physical properties
true
false
3
To measure the volume of irregular solid shape so we use graduated cylinder
true
false
4
the density of a sample of Al metal at 8.4g and 3.1 cm at zero degree c temperature is 2.7 k.g
per meter cubic
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10/27/2018
H.W
true
false
5
The chemical formula for copper is Co in perodic table
true
false
6
A hot tea is a homogenous mixture
true
false
7
Plasma is a high temperature physical state of matter in which atoms lose most of their
electrons
true
false
8
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10/27/2018
H.W
Extensive properties does not depend on the amount of matter true
false
9
Mass = weight at constant temperature
true
false
10
H2O is a pure substance
true
false
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