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kupik [55]
3 years ago
8

Darcy was working on a presentation on playing chess. Because she chose the Checkerboard animation for her slide title, she had

to use the same animation for her bullet points.
True
False
Chemistry
2 answers:
gayaneshka [121]3 years ago
8 0
False I don’t the she used the same same animation because if she did she would not get a good grade
m_a_m_a [10]3 years ago
4 0
False because why would she keep using the same thing over and over again
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What is the mass of 5.7 x 1022 atoms Mn?
Svet_ta [14]

The mass of 5.2 x 10^22 manganese atoms in grams would be 635.784 grams.

What is Avogadro's constant?
Avogadro's number tells us how many particles are in one mole (or mol) of a substance. <u>Electrons</u><u>, molecules, or atoms</u> could be among these particles. Avogadro's number has a value of approximately 6.022140857×10²³ mol⁻¹. Avogadro's number tells us how many particles are in one mole (or mol) of a substance. <u>Electrons, molecules, or atoms </u>could be among these particles. Avogadro's number has a value of approximately 6.022140857×10²³.


Computation of mass
Avogadro calculated that every material had 6.022 x 10^23 atoms per mole.

5.2 x 10^22 atoms of Mn would contain how many moles?
= 6.022 x 10^23 /1 x 5.2 x10^22
=11.58 moles

Mn mass equals 11.58 moles multiplied by 54.9
= 635.784 grams

You may learn more about Avogadro's constant here: brainly.com/question/15989275
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6 0
1 year ago
Which correct answer is it?
nordsb [41]
C. because i take college classes and I've did this before
4 0
3 years ago
Read 2 more answers
How many isotopes does carbon and oxygen have?
aleksandr82 [10.1K]

Answer:

oxygen consists of 3 isotopes and carbon consists of 2 isotopes

Explanation:

oxygen: O16, O17 and O18

Carbon: C12 and C13

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3 years ago
Calculate the heat absorbed when 31.6 g of ice at 0°C is completely melted​
attashe74 [19]

Latent heat of fusion for ice is 33600J/k

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Heat absorbed

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Determine the mass of a billion gold (u) atoms
Dennis_Churaev [7]
Therefore, 1 mole<span> of gold weighs </span>196.9665<span> grams. So, in 2.8 grams of gold we would have:</span>
(2.8 gram)(1 mole/196.9665<span> gram) = 0.0142 mole.</span>
From Avogadro's number, we know that there are approximately 6.02 x 1023<span>atoms/mole.</span>
5 0
4 years ago
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