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Sliva [168]
3 years ago
9

What is the coordination number of an iridium atom in the face-centered cubic structure of iridium?

Chemistry
1 answer:
liubo4ka [24]3 years ago
4 0

Answer:12

Explanation:

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The graph below shows the decay of a radioactive isotope. What is the half-life of the isotope?
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Which of the following is the best name for a compound made from calcium and bromine? (CaBr2) calcium bromide calcium dibromide
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Answer:

Calcium bromide

Explanation:

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A gas has a temperature of 14 oC and volume of 4.5 liters. If the temperature is raised to 29
kirza4 [7]

Answer:

The new volume of the gas is 4.74L

Explanation:

Data;

T1 = 14°C = (14 + 273.15)K = 287.15K

V1 = 4.5L

T2 = 29°C = (29 + 273.15)K = 302.15

V2 = ?

From Charles law,

The volume of a fixed mass of gas is directly proportional to its temperature provided that pressure remains constant.

Mathematically,

V = kT

k = V1 / T1 = V2 / T2 = V3 / T3 = .............= Vn / Tn.

V1 / T1 = V2 / T2

Solving for V2

V2 = (V1 * T2) / T1

V2 = (4.5 * 302.15) / 287.15

V2 = 4.735L

V2 = 4.74L

The new volume of the gas is 4.74L

7 0
3 years ago
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