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just olya [345]
2 years ago
14

Janet runs 6.4 miles in one hour. Is it speed or velocity or acceleration

Chemistry
1 answer:
Murrr4er [49]2 years ago
6 0

Answer:

acceleration

Explanation:

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Heat.

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2 years ago
Stannum has a body centered tetragonal with lattice constant, a = b = 5.83A and c = 3.18A. If the atomic radius is 0.145 nm, det
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Answer:

the atomic packing factor of Sn is 0.24

Explanation:

a = b = 5.83A and c = 3.18A.

Volume of unit cell = a²c

= (5.83)² *  3.18 * 10⁻²⁴ cm³

= 1.08 * 10⁻²²cm³

Volume of atoms =

2 \times  \frac{4}{3} \pi r^3

(∴ BCC, effective number of atom is 2)

Volume of atoms =

2 * \frac{4}{3} *3.14*(0.145*10^-^7cm)^3

= 2.55*10⁻²³cm³

\text {Atomic packing factor}=\frac{\text {volume occupied by atom}}{\text {volume of unit cell }}

=\frac{2.55*10^-^2^3}{1.08*10^-^2^2} \\\\=0.24

<h3>therefore, the atomic packing factor of Sn is 0.24</h3>
4 0
3 years ago
The atom shown below is?
Volgvan

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Explanation:

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Please select the word from the list that best fits the definition
AveGali [126]

Answer:

I choose D option because may be it's correct

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Someone please help me with my quiz about Moles for chemistry!
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