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TEA [102]
3 years ago
5

Which step in the Scientific Method should be done after asking a question and before developing a hypothesis? A)analyze the dat

a
B)communicate findings
C) conduct background research D)design an experiment​
Chemistry
2 answers:
Alexxx [7]3 years ago
6 0
I believe the best answer for this would be D) no matter what it can be A or B and C wouldn’t make much sense so D) design an experiment
zysi [14]3 years ago
5 0
This is so frustrating I don’t even understand this
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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
Fed [463]

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
What is the electron structure of sodium
yarga [219]
Electron structure of sodium:
₁₁Na: 1s²2s²2p⁶3s¹
8 0
3 years ago
Read 2 more answers
Rank the following in terms of increasing ionization energy: Sulfur, oxygen, hydrogen, and fluorine.
Naily [24]

Answer:

Ranked from lowest to highest:

Sulfur - 999.6 kJ/mol

Hydrogen - 13.5984 kJ/mol

Oxygen - 13.6181 kJ/mol

Fluorine - 17.4228 kJ/mol

3 0
2 years ago
What are the functions of respiratory system​
VMariaS [17]

Answer:

Your lungs are part of the respiratory system.

Explanation:

A group of organs and tissues that work together to help you breathe.The respiratory system's main job is to move fresh air into your body while removing waste gases.

Was this helpful?

If so let me know and please mark me brainiest.

6 0
2 years ago
Convert 100mL to L. Show your work to receive full credit.
Ilya [14]

Answer:

100 ml = 0.1 L

I divided 100 by 1000 because 1000ml = 1L

3 0
3 years ago
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