Chemistry

Chemistry is the study of interaction of chemical substances that are constituted of atoms or the subatomic particles such as protons, electrons and neutrons. Atoms combine to produce molecules or crystals.Most of the time Chemistry is  called the central science because it connects the other natural sciences such as astronomy, physics,material science, biology and geology.

To understand Chemistry, you can get Chemistry answers from TutorVista.

Basic concepts of Chemistry:Following are some of the basic concepts needed in Chemistry.
1)Atoms
2)Elements
3)Compound
4)Substance
5)Molecule
6)Mole and amount of substance
7)Ions and salts


You can also check polar and nonpolar covalent bonds which are important part of Chemistry.
Next time we will learn in detail the basic concepts of Chemistry.

Absorption and Adsorption

We will now discuss the differences between the processes of absorption and adsorption. Many a times the phenomena have been understood wrongly. They have a similar physical force working behind them.Although, both of them are completely different.
The word Absorption has different meanings in contexts of different branches of science. We shall discuss  the general understanding of the process. The process of absorption involves particles( any) being taken beyond the layer or line of difference.
While the process of Adsorption is not. It is only on the surface.
There are quite a few differences between absorption and adsorption.
In physics, the X-ray spectrum based on the emission-absorption spectra can be observed.

Adsorption too has different meanings in different contexts.

Definition of demand and supply

In this blog we will discuss the definition of demand and supply.

Definition of demand: The amount of a particular economic good or service that a consumer or group of consumers will want to purchase at a given price may be defined as demand.

Definition of supply: The total amount of a good or service avaible for purchase along with demand is defind as supply.

For more information on the meaning of supply and demand, see the link on supply and demand definition. 

You can also know more about supply by learning about the determinants of supply.

There are four basic laws of supply and demand.They are mentioned below.

1)When demand increases and supply remains unchanged then there is higher equilibrium price and quantity.

2)When there is decrease in demand and supply remains the same then there is lower equilibrium price and quantity.

3)If there is increase in supply and demand remains unchanged then there is lower equilibrium price and higher quantity.

4)If there is decreases in supply and demand remains the same then there is higher price and lower quantity.

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Uses of water

Water is a compound with the chemical formula H2O. It is a molecule of oxygen and hydrogen formed by covalent bond . It exists in the form of solid, liquid, ice and gas. 70.9% of the Earth's surface is covered with water, and is vital for all known forms of life.

You can also look up the facts about water pollution.

Some of the uses of water are explained below:
Water helps earth’s climate from getting too cold or too hold. Land absorbs as well as releases heat quickly from the sun. But the ocean release as well as absorbs heat slowly from the sun. So gentle wind comes from the oceans and gives warmth to the land during winter as well as coolness during summer.

To get rain people worshiped rain gods as well as prayed for rain. Often, when there is no rain, crops withered and starvation started. Sometimes the rain falls too heavily or too suddenly. At this time rivers overflowed and cause massive property destruction. 

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