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dedylja [7]
4 years ago
8

Tobacco's main ingredient is nicotine,alcohol,tar,cigarettes?

Chemistry
1 answer:
Fed [463]4 years ago
3 0
The correct answer is nicotine. It is the main ingredient in a tobacco. Nicotine is an addictive substance thus overuse of the substance will lead to addiction. It acts as a stimulant and a depressant. Tobacco can be dried for smoking and can also be consumed directly.
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Which of the following is a chemical property? A. boiling point B. melting point C. density D. combustibility
nevsk [136]

Answer:

D

Explanation:

Because the other answers can not to be considered to be chemical properties.

Chemical means that the after the reaction the checal properties have changed in a way that it can no longer be called the same ad befor. In short, it can not be undone.

Burning a match is irriversable, meaning you can never go back to the previous situation because the chemical compounds have changed (dramatically).

Melted ice can be frozen again. Steam (evaporated water) can condensate to water which can be heated and can boil again. The chemical contents remain H2O.

6 0
3 years ago
What is meant by shearing fleece​
Ostrovityanka [42]

Answer:

Sheep shearing is the process by which the woollen fleece of a sheep is cut off.

Explanation:

The person who removes the sheep's wool is called a shearer.

6 0
3 years ago
Brass is commonly used to make musical instruments because it is easily malleable and has excellent acoustic properties. It cons
Hoochie [10]
Brass is an alloy, a substitutional alloy to be exact. Substitutional alloying is a type of alloying where certain metallic atom in a crystal structure is replaced with another constituents. Bronze is also a substitutional alloy. Bronze is made up of mostly copper with a mixture of zinc. 



8 0
3 years ago
What happens when nitrogen fills its valence shell?
RSB [31]
Hello!

Like many other elements in chemistry, when an atom's valence shell is filled the element becomes stable. Through the octet rule we know that when the very last valence shell becomes filled, the atom is stable and therefore it is highly unlikely for the element to form bonds with that of another.

I hope this helped!
8 0
4 years ago
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