Question

14. How do you classify elements from compounds?
A. Elements are single atom substances.
B. Compounds are composed of one molecule.
C. Compounds are composed of two or more molecules.
D. Compounds are composed of two or more compounds.
15. Why is it important to be familiar with elements and compounds?
A. To classify them accordingly.
B. To tell others you know them.
C. To enumerate elements and compounds.
D. To be praised by others of knowing them.​

Answer 1

Answer:

q1, option no D

q2 option no option no A

Answer 2

Answers:

14. a) Elements are single atom substances and c) compounds are composed of two or more molecules. are the correct options that help in classifying elements from compounds.

Explanation: The difference between elements and compounds are as follows:

Elements:

1. Elements are made up of single atom
2. It is represented with the help of symbols.
3. Elements are classified as metal, non-metals, and metalloids.
4. There are about 118 elements found on earth up to date
5. Some examples of elements include Iron(Fe), Nitrogen(N), Oxygen (O) etc,...

Compounds:

1. Compounds are formed by the combination of two or more types of elements in a fixed ratio.
2. It is represented using the formula
3. Compounds are classified depending upon their bonds as metallic, non-metallic, and ionic.
4. There is an endless number of compounds that exist on earth up to date.
5. Some examples of compounds include $H_{2}O, CO_{2},H_{2}S$, etc..,                  

15. a) To classify them accordingly

Explanation: It is necessary to be familiar with elements and compounds as it makes the classification of elements and compounds easier and provides a better understanding as it forms the basics of the entire substance that is available on earth.

#SPJ3