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kotegsom [21]
3 years ago
7

Which is the most concentratic acid​

Chemistry
1 answer:
denis23 [38]3 years ago
5 0

Answer:

Tetraoxosulphate vi acid (H2SO4)

Explanation:

Becauses it ionizes completely

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The half-life of argon-39 is 269 years. It decays into krypton-39. After 1,076 years, what fraction of the original amount of ar
Darya [45]

Answer:

1/16

Explanation:

From the question given above, the following data were obtained:

Half-life (t½) = 269 years

Time (t) = 1076 years

Fraction remaining =?

Next, we shall determine the number of half-lives that has elapsed. This can be obtained as follow:

Half-life (t½) = 269 years

Time (t) = 1076 years

Number of half-lives (n) =?

n = t / t½

n = 1076 / 269

n = 4

Thus, 4 half-lives has elapsed.

Finally, we shall determine the fraction of the original amount remaining. This can be obtained as follow:

Let N₀ be the original amount.

Let N be the amount remaining.

Number of half-lives (n) = 4

Fraction remaining (N/N₀ ) =?

N = 1/2ⁿ × N₀

N = 1/2⁴ × N₀

N = 1/16 × N₀

Divide both side by N₀

N/N₀ = 1/16

Thus, the fraction of the original amount remaining is 1/16

8 0
3 years ago
Read 2 more answers
What is the maximum magnification of a compound light microscope?
igor_vitrenko [27]

Answer: 100x

Explanation:

The actual power or magnification of a compound optical microscope is the product of the powers of the ocular (eyepiece) and the objective lens. The maximum normal magnifications of the ocular and objective are 10× and 100× respectively, giving a final magnification of 1,000×.

8 0
3 years ago
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A student gains 2.2 lb in two weeks. How many grams did he gain?
Anna71 [15]

The amount of grams the student gained is 997.9 grams

<h3>Data obtained from the question</h3>

From the question given above, the following data were obtained:

  • Mass (in lb) = 2.2 lb
  • Mass (in grams) =?

<h3>How to convert 2.2 lb to grams</h3>

The mass gained in grams can be obtained by simply converting 2.2 lb to grams. This is illustrated below:

1 lb = 453.592 grams

Therefore,

2.2 lb = (2.2 lb × 453.592 grams) / 1 lb

2.2 lb = 997.9 grams

Thus, the number of grams the student gained is 997.9 grams

Learn more about conversion:

brainly.com/question/23393963

#SPJ1

3 0
2 years ago
In which of the following does matter change into a new substance?
cestrela7 [59]

Answer:

Chemical change

Explanation:

Matter changes into a new substance by changing into a chemical change. In a chemical change, the substance cannot be changed back to its previous state and a new substance is formed.

4 0
3 years ago
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Freud argued that a person was more likely to commit crime when what part of the personality wasn’t fully developed?
KonstantinChe [14]
According to Sigmund Freud, the part of the personality if not fully developed, a person will be more likely to commit a crime is the superego. The superego of one's person is the moral guide. This is the aspect of personality that when it is correctly developed, urges and desires of the id and the one's ego are being balanced. This is when a person rejects those that are not ethically right. When a person commits a crime, this person is more likely committed to his or her urges and desires without even thinking of what the consequences he or she will face.
7 0
3 years ago
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