Question

question 7

why is chemistry sometimes referred to as \the central science\?

because it is interconnected with a vast array of other scientific fields.
because it was discovered after physics but before ecology.
because it was discovered more than 2500 years ago.

question 8

when did humans start having an interest in chemistry?

since they discovered the elements in the periodic table.
since they realized they needed medicine.
since the discovery of fire.
since alchemists tried to convert lead into gold.

question 9

modern chemistry was the result of the historical progression of alchemy.

true
false

Explanation:

Analyze Question 7

The question asks why chemistry is referred to as "the central science." Chemistry connects physical sciences (like physics) with life sciences and applied sciences (like biology, medicine, and environmental science). Thus, it is interconnected with a vast array of other scientific fields.
Using the Inorganic Chemistry knowledge point, we identify the first option as correct.

Analyze Question 8

The question asks when humans started having an interest in chemistry. Human interest in chemical processes began with the control and use of fire, which allowed early humans to cook food, bake clay, and smelt metals.
Therefore, the third option, "Since the discovery of fire," is the correct choice.

Analyze Question 9

The statement is "Modern chemistry was the result of the historical progression of alchemy." Alchemy was an ancient practice that laid the foundation for modern chemistry by developing laboratory techniques, equipment, and experimental methods.
Thus, the statement is true.

Answer:

Question 7

• Because it is interconnected with a vast array of other scientific fields. (Correct answer)
• Because it was discovered after physics but before ecology.
• Because it was discovered more than 2500 years ago.

Question 8

• Since they discovered the elements in the periodic table.
• Since they realized they needed medicine.
• Since the discovery of fire. (Correct answer)
• Since alchemists tried to convert lead into gold.

Question 9

• True (Correct answer)
• False