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JulsSmile [24]
3 years ago
6

Need a quick answer please

Chemistry
1 answer:
DIA [1.3K]3 years ago
5 0

Answer:

I think it B

Explanation:

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Pure silver has a brilliant white metallic luster. How many moles of silver, Ag, are in 7.54 × 1023 atoms of silver?
AleksAgata [21]

The number of moles of silver, Ag, that are in 7.54 × 10²³ atoms of silver is 1.25 moles

From the question,

We are to determine the number of moles of silver, Ag, that are present in 7.54 × 10²³ atoms of silver

From the formula

Number\ of\ moles  =\frac{Number\ of\ atoms}{Avogadro's\ constant}

Avogadro's  constant = 6.022 × 10²³  atoms mol⁻¹

and

From the given information

Number of silver atoms = 7.54 × 10²³ atoms

Putting the parameters into the formula, we get

Number of moles of silver present = \frac{7.54\times 10^{23} }{6.022\times 10^{23}}

Number of moles of silver present = 1.2520757 moles

Number of moles of silver present ≅ 1.25 moles

Hence, the number of moles of silver, Ag, that are in 7.54 × 10²³ atoms of silver is 1.25 moles

Learn more on calculating number of moles here: brainly.com/question/15839520

7 0
2 years ago
What observation did Rutherford make from his gold-foil experiment which
JulsSmile [24]

Answer:

A piece of gold foil was hit with alpha particles, which have a positive charge. Most alpha particles went right through. This showed that the gold atoms were mostly empty space. Some particles had their paths bent at large angles. A few even bounced backward. The only way this would happen was if the atom had a small, heavy region of positive charge inside it.

8 0
3 years ago
Which of the following statements about density is NOT true?
vazorg [7]

Answer:

<h2>Letter B</h2>

Explanation:

because density is an INTENSIVE PROPERTY not an EXTENSIVE.

7 0
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The statement 2 2 = 4 would be considered a _____ in the science world
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The statement would be considered a law.
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fgiga [73]

It is part of oceans, air, rocks, soil and all living things. Carbon doesn't stay in one place. It is always on the move! In the atmosphere, carbon is attached to oxygen in a gas called carbon dioxide.

Hope this helps.

7 0
3 years ago
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