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PCB is created by attaching the element chlorine to the organic compound biphenyl.
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Describe two ways that chemicals can be used to improve crop yields?
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.
What are the advantages of silicon?
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.
What 2 chemicals was the Earth's first atmosphere composed of?
Hydrogen and Helium
How long can you store pool chemicals?
I would say 2 seasons, I know from my personal experience.
What does it mean if a chemicals oxidation number is plus 2?
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.
Describe two ways that chemicals can be used to improve crop yields?
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.
What chemicals are used in animal testing?
You need 2 brush ur yellow teeth ahaha !!.
What chemicals are used to form a hurricane?
2 parts hydrogen to each 1 part oxygen.
Where might one go to find out what services PCB Fab has to offer?
PCB Fab Express allows one to order, register, and ask questions about printed circuit board fabrications. The boards are customized from 2- 22 layers.
What does weathering?
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'
What does it mean to tan a hide?
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.
What does it mean to tan hides?
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.
Why is graphite use?
graphite is used as lubricant in machinery.also it is used in making leads of pencils.hence graphite is useful.
What are the advantages of silicon?
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.
What are the functions of thallophyta?
1) it is used by aquatic organisms as food. 2) it is to make some chemicals like agar-agar.
What are two ways that people used astronomy?
1) It was used for navigation 2) It was used for dating and making calendars
What can you use Graphite for?
1) Graphite is used for making the cores of our pencils called pencil leads. 2) It is used for making carbon electrodes.
