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ValentinkaMS [17]
3 years ago
7

7. Which subatomic particle was discovered first?

Chemistry
1 answer:
ki77a [65]3 years ago
6 0

Answer: electron

Explanation:

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Who was the first person known to have used the terms genus and species when classifying organisms?
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C Linnaeus was the first person known to have used the terms genus and species when classifying organisms.

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3 years ago
Which of the following would be most likely to experience strong intermolecular forces?
ryzh [129]

Answer:

The correct answer is D

Explanation:

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3 years ago
Which of the following best describes how an ionic compound dissolves in water?
Nadusha1986 [10]

The statement that best describes how an ionic compound dissolves in water is as follows: it separates into individual molecules and is an electrolyte, which is option C.

<h3>What is an ionic compound?</h3>

Ionic compound is any compound is a chemical compound composed of ions (charged atoms) held together by electrostatic forces termed ionic bonding.

Ionic compounds are electrolytes i.e. a substance when, in solution or when molten, ionizes and conducts electricity.

For example; sodium chloride (NaCl) is an ionic compound breaks down into sodium ions (Na+) and chloride ion (Cl-).

Therefore, the statement that best describes how an ionic compound dissolves in water is as follows: it separates into individual molecules and is an electrolyte.

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4 0
2 years ago
A study of the decomposition reaction 3RS2  3R + 6S yields the following initial rate dat
shutvik [7]
Missing question: What is the rate constant for the reaction?
<span>[RS2](mol L-1) Rate (mol/(L·s))
0.150                0.0394
0.250                0.109
0.350                0.214
0.500                0.438</span>
Chemical reaction: 3RS₂ → 3R + 6S.
Compare second and fourth experiment, when concentration is doubled, rate of concentration is increaced by four. So rate is:
rate = k·[RS₂]².
k = 0,438 ÷ (0,500)².
k = 1,75 L/mol·s.
3 0
3 years ago
Please help i will give extra points
GREYUIT [131]

Answer:

B. Coal

Explanation: Coal is mined to produce energy.

3 0
3 years ago
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