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WorksheetsIntro to chemistry
Total questions: 8
Worksheet time: 40mins
Name
Class
Date
1.
Which of the following is not included in the atom?
a)
nucleus
b)
neutron
c)
isotopes
d)
electron
2.
Which of the following is the weakest bond?
a)
hydrogen bond
b)
ionic bond
c)
covalent bond
3.
how many electrons are needed to complete the valance shell for Phosphorus?
a)
2
b)
5
c)
4
d)
3
4.
Select which of the following are compounds
a)
CH3COOH
b)
H2SO4
c)
H2
d)
CaCO3
e)
O2
5.
Hoe many electrons does the second shell hold?
a)
2
b)
8
c)
6
d)
12
6.
Which of the following is "water-hating"
a)
amphipathic
b)
hydrophilic
c)
hydrophobic
7.
Which of the following are important reasons of water?
a)
detoxify
b)
lubrication
c)
swimming
d)
transport
8.
What is the pH of water?
a)
8
b)
1
c)
10
d)
7
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