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Chemistry
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Acids Bases and Salts
23
Biochemistry Introduction
217
Characteristics of Acids Bases and Salts
114
Chemical Industries
66
Environmental Chemistry: Atmosphere
95
Environmental Chemistry: Water
61
Chemical Equilibrium
46
Hydrocarbons
86
Organic Chemistry
92
The Atmosphere
25
Show/Hide Answers
Organic Chemistry
What is the major starting material for the manufacture of organic chemicals and products such as plastic?
ethylene
acetylene
phenol
methanol
Author:
rikazzz
Comment
Biochemistry Introduction
Gelatin is used in the production of
industrial items
ropes
curry
bakery items
Author:
rikazzz
Comment
Biochemistry Introduction
How many amino acids are not synthesized by our bodies?
40
30
20
10
Author:
rikazzz
Comment
Characteristics of Acids Bases and Salts
Considering the methods for making salt, the reaction of acid and base gives
salt and water
salt and hydrogen
salt, carbon dioxide and water
salt and salt
Author:
rikazzz
Comment
Organic Chemistry
Commercial sources of alkanes include
coal
natural gas
petroleum
all of above
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rikazzz
Comment
Characteristics of Acids Bases and Salts
What do we use to reduce unpleasant fishy odor?
nitric acid
citric acid
hydrochloric acid
sulphuric acid
Author:
rikazzz
Comment
Environmental Chemistry: Water
Water that gives little lather is called
hard water
soft water
dirty water
clean water
Author:
rikazzz
Comment
Everyday Science
Percentage of neon in the air is
0.0018
0.0019
0.002
0.0021
Author:
rikazzz
Comment
Organic Chemistry
How many isomers are contained by Hexane?
two
three
four
five
Author:
rikazzz
Comment
Chemical Equilibrium
Unit of equilibrium constant for PCl5 PCl3 + Cl2
no units
mol dm-3
dm3mol-1
[mol dm-3]-2
Author:
rikazzz
Comment
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