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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
Environmental Chemistry: Atmosphere
What is the source of chlorofluorocarbons?
aerosol sprays foams
exhaust fumes of motor vehicles
incomplete burning of wood
none of above
Author:
rikazzz
Comment
Biochemistry Introduction
Physical state of oil at room temperature is
solid
liquid
gas
plasma
Author:
rikazzz
Comment
Acids Bases and Salts
If the concentration of H
+
is greater than 1 x 10
-7
then solution is
neutral
basic
acidic
aqueous
Author:
rikazzz
Comment
Chemical Equilibrium
Which of the following has made it possible to get the maximum amount of products?
Le Chatellier's principle
Charle's law
Boyle's law
Snell's law
Author:
rikazzz
Comment
Environmental Chemistry: Water
What is the percentage of atmospheric water?
0
0.002
0.006
0.021
Author:
rikazzz
Comment
Environmental Chemistry: Atmosphere
What is the color of nitrogen dioxide?
colorless
pink
brown
reddish brown
Author:
rikazzz
Comment
Chemical Equilibrium
What is the term used for a state of a chemical reaction in which forward and reverse reactions take place at the same rate?
chemical equilibrium
stable reaction
reversible reaction
forward reaction
Author:
rikazzz
Comment
Biochemistry Introduction
Which of the following regulates blood calcium?
vitamin A
vitamin B
vitamin C
vitamin D
Author:
rikazzz
Comment
Organic Chemistry
Which of the following are characterized by the presence of the hydroxyl group attached to a hydrocarbon chain?
halo alkanes
phenols
ethers
alcohols
Author:
rikazzz
Comment
Characteristics of Acids Bases and Salts
Which of the following is used to crave patterns during etching?
acid
base
dye
water
Author:
rikazzz
Comment
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