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taurus [48]
3 years ago
7

PlEasE help ASAP Snskskssmskssm

Chemistry
1 answer:
salantis [7]3 years ago
5 0

Answer:

message me on messenger johnpatrick so I can help you

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Gold forms face-centered cubic crystals. The atomic radius of a gold atom is 144 pm. Consider the face of a unit cell with the n
kipiarov [429]

Answer:

The length of an edge of this unit cell is 407.294 pm

Explanation:

Face centered cubic structure contains 4 atoms in each unit cell and 12 coordination number, occupying about 74% volume of the total cell. Face centered cubic structure is known for efficient use of space for atom packing.

To determine the edge length, a relationship between the radius of the atom and edge length is used.

X = R√8

Where;

X is the length of an edge of this unit cell

R is the radius of the gold atom = 144 pm = 144 X 10⁻¹² m

X = 144 X 10⁻¹²√8

X = 407.294 X 10⁻¹² m

X = 407.294 pm

Therefore, the length of an edge of this unit cell is 407.294 pm

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The process of change in a population over time is called what?
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Microevolution

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Which part of the wave does the arrow point to?
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A water molecule consists of an oxygen atom and two hydrogen atoms covalently bonded in a bent shape. Oxygen however, attracts t
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D.

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Water is polar, for one thing. Polar mixes with polar, nonpolar mixes wih nonpolar. This leaves D.

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Clay and water make a ______<br><br> a. solution<br> b.suspension<br> c. colloid
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