How many liters of carbon dioxide can be produced if 37.8 grams of carbon disulfide react with excess oxygen gas at 28.85 degree
1 answer:
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Answer: C. Metals tend to easily lose their valence electrons.
Explanation:
Metals are those substances which have tendency to loose their valence electrons to attain noble gas configuration and forms positive ions called as cations.
Example: Gold, potassium etc
Non metals are those substances which have tendency to gain valence electrons to attain noble gas configuration and form negative ions called as anions.
Example: Sulphur, Chlorine
Answer:
Explanation:
Mass of one tablet = 20 mg
Mass of two tablets =
Percent that is soluble in water = 40%
Mass of tablet that is soluble in water =
So, mass of solute is
Density of water = 1 kg/L
Volume of water = 1 L
So, mass of 1 L of water is
PPM is given by
Hence, the concentration of iodine in the treated water .
Explanation:
It is known that the relation between pH and is as follows.
pH =
and,
Hence, first we will calculate the value of as follows.
=
= 4.75
Now, we will calculate the value of pH as follows.
pH =
=
= 4.75 + (-0.677)
= 4.07
Therefore, we can conclude that the pH of given solution is 4.07.