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Juliette [100K]
3 years ago
8

What is classification? write its two importance. In chemistry

Chemistry
1 answer:
IrinaVladis [17]3 years ago
3 0

Answer:

Classification of elements in groups provide us with a fixed pattern in which the elements change their properties periodically. Periodic table made the study of physical and chemical properties of elements simple and organized.It is also necessary to understand how they form the compounds.

Explanation:

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Could a mixture be made up of only one element and no compounds​
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3 years ago
Choose the answer that best explains why α–pyrone reacts with br2 to yield a substitution product (like benzene does), rather th
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As can be seen in the attached image, α-pyrone has a highly electrophilic carbon atom, since it is attached to two oxygen atoms that are electronegative and subtract electrical charge from the carbon, leaving it with a <u>positive partial charge</u>. By virtue of the above, <u>the bromine atoms, which have an important electron density that makes them good nucleophiles, will be attracted to the aforementioned carbon due to their positive charge</u>, thus favoring the substitution product to a greater extent than that of addition.

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3 years ago
If the pH changes from 5 to 6, the H+ would concentration would?
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Examine the model of a metallic bond.
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Answer:

b the delocalized

Explanation:

it could be the right answer

3 0
3 years ago
Which observation would best support that the bond present was a covalent bond?
DIA [1.3K]

Answer:

A covalent bond is present between two non-metals that share electrons in their molecular structure.

Explanation:

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