Table of Contents
What are the chemical properties of freshwater?
The water quality parameters considered in the present study were: temperature, pH, transparency , electrical conductivity, dissolved oxygen, free CO 2 , alkalinity, total dissolved solids, total hardness, chloride, sulphate, nitrate, inorganic phosphate, biological oxygen demand and chemical oxygen demand.
Where do you find hydrogen?
It is found in the sun and most of the stars, and the planet Jupiter is composed mostly of hydrogen. On Earth, hydrogen is found in the greatest quantities as water. It is present as a gas in the atmosphere only in tiny amounts – less than 1 part per million by volume….
Discovery date | 1766 |
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Allotropes | H2 |
What are the chemical parameters of water?
3.2 Chemical parameters of water quality
- 1 pH. pH is one of the most important parameters of water quality.
- 2 Acidity. Acidity is the measure of acids in a solution.
- 3 Alkalinity.
- 4 Chloride.
- 5 Chlorine residual.
- 6 Sulfate.
- 7 Nitrogen.
- 8 Fluoride.
Is hydrogen positive or negative?
Complete answer: – Hydrogen is a positively charged ion. The first element in the periodic table is hydrogen because the number of the electron in hydrogen is 1.
What is the angle of a water molecule?
approximately 104.5 degrees
A water molecule consists of two hydrogen atoms and one oxygen atom. The three atoms make an angle; the H-O-H angle is approximately 104.5 degrees. The center of each hydrogen atom is approximately 0.0957 nm from the center of the oxygen atom.
What happens when hydrogen and oxygen combine to form water?
When molecular hydrogen (H 2) and oxygen (O 2) are combined and allowed to react together, energy is released and the molecules of hydrogen and oxygen can combine to form either water or hydrogen peroxide. These two processes are represented by the two chemical equations shown at right.
What happens when a wire touches the ground and water?
Large amount of current will flow heating the wire, the path inside water to which electricity was traveling will be heated and the water will begin to boil near to that path. A person may get an electric shock if he is in touch with ground and water simultaneously.
What happens if a live wire is dropped into a river?
2. If the live wire drops in the river near you…the ions present in water commonly H+ and OH- as well as other free ions such will conduct electricity and you’ll get a huge electric shock which will create the end result as your death as well as the death of the creatures in the water body as water is a good conductor of electricity.
How to avoid electrical shock when running on the river?
1. You’re near the bank of the river and the liver wire touches the ground and not water….in this case if you’re not too near to the wire then you wont get any electrical shock. 2.