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lawyer [7]
3 years ago
6

Which is a way that biotechnology has Not helped society?

Chemistry
2 answers:
Trava [24]3 years ago
3 0
New, stronger bacteria have evolved that are resistant to antibiotics.
Oksi-84 [34.3K]3 years ago
3 0

Answer: C.) New, stronger bacteria have evolved that are resistant to antibiotics.

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Which of these pumpkins has the most<br> thermal energy? Explain your answer.
VLD [36.1K]

Answer:

big

Explanation:

5 0
3 years ago
How many more times intense is an earthquake that measures 8 on the Richter scale than an earthquake that measures 5? Explain yo
djyliett [7]

The answer on edguinity is A magnitude 8 earthquake is 1,000 times more intense than a magnitude 5 earthquake. A magnitude 8 earthquake is 108 times more intense than a standard earthquake, while a magnitude 5 earthquake is 105 times more intense than a standard earthquake, and 108 ÷ 105 = 103. Each unit increase on the Richter scale corresponds to an intensity increase by a factor of 10. So from 5 to 8 on the Richter scale, the intensity increases by 103 = 1,000.

3 0
3 years ago
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One strategy to keep college tuition costs down is to attend a(n)
luda_lava [24]
Attending an in state college
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3 years ago
In a chemical reaction, exactly 2 mol of substance A react to produce exactly 3 mol of substance B. 2 A ⟶ 3 B How many molecules
Harman [31]

Answer:

There will be produced 1.71 moles of B which contain 1.03×10²⁴ molecules

Explanation:

The example reaction is:

2A → 3B

2 moles of A produce 3 moles of B

If we have the mass of A, we convert it to moles and then, we make the rule of three: 29.2 g / 25.6g/mol = 1.14 moles

Therefore 2 moles of A produce 3 moles of B

1.14 moles of A will produce (1.14 . 3) / 2 = 1.71 moles of B are produced

Now we can determine, the number of molecules

1 mol has NA molecules (6.02×10²³)

1.71 moles have (1.71 . NA) = 1.03×10²⁴ molecules

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3 years ago
Which is the BEST evidence that a chemical change has occurred?
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d///////////////////////////////

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