PCB is created by attaching the element chlorine to the organic compound biphenyl.
1. Chemicals can be used to eliminate pests that harm the plants, such as a pesticide. 2. Chemicals can be used to add the nutrients that the crops need from the ground, such as adding Nitrogen for corn growth.
There are only 2 advantages that i no of and those are that it is cheaper than most chemicals and that it can also be used for kitchen utensils.
Hydrogen and Helium
I would say 2 seasons, I know from my personal experience.
It can mean that the element has lost 2 electrons to form a pos. 2 ion. Or it can mean that in a particular compound (or polyatomic ion) that atom is combined with more electronegative elements in a particular combination that the rules used to assign oxidation numbers gives this atom a +2 oxidation number.
1. Chemicals can be used to eliminate pests that harm the plants, such as a pesticide. 2. Chemicals can be used to add the nutrients that the crops need from the ground, such as adding Nitrogen for corn growth.
You need 2 brush ur yellow teeth ahaha !!.
2 parts hydrogen to each 1 part oxygen.
PCB Fab Express allows one to order, register, and ask questions about printed circuit board fabrications. The boards are customized from 2- 22 layers.
weathering is the process of which wind, water, chemicals, or other things wear down a mineral. This is what erosion is.Ans 2 -Weathering is also a term used by modelmakers, especially those who make models of tanks, trucks and aircraft. It is the technique of making those vehicles look 'used and abused'
To "tan a hide" has two definitions: 1. To preserve an animal skin by making it into leather using chemicals. 2. To spank someone soundly.
To "tan a hide" has two definitions: 1. To preserve an animal skin by making it into leather using chemicals. 2. To spank someone soundly.
graphite is used as lubricant in machinery.also it is used in making leads of pencils.hence graphite is useful.
There are only 2 advantages that i no of and those are that it is cheaper than most chemicals and that it can also be used for kitchen utensils.
1) it is used by aquatic organisms as food. 2) it is to make some chemicals like agar-agar.
1) It was used for navigation 2) It was used for dating and making calendars
1) Graphite is used for making the cores of our pencils called pencil leads. 2) It is used for making carbon electrodes.