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N76 [4]
2 years ago
13

Which member of each of the following pairs would you expect to have the higher melting point? Explain your reasoning. (1 each)

Chemistry
1 answer:
german2 years ago
8 0
The answer is c. Ch4 or Ch3C1
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A substance that changes color when placed in an acidic or basic solution is called a
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When rubidium ions are heated to a high temperature, two lines are observed in its line spectrum at wavelengths (a) 7.9 × 10−7 m
svetlana [45]

Answer:

The frequencies of the two lines are:

a) 3.79\times 10^{14} s^{-1}

b)7.14\times 10^{14} s^{-1}

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Explanation:

\nu=\frac{c}{\lambda }

c = speed of light

\lambda = wavelength of light

a) Frequency of the light when wavelength is equal to 7.9\times 10^{-7} m

\nu=\frac{c}{\lambda }

\nu=\frac{3\times 10^8m/s)}{7.9\times 10^{-7}}

\nu=3.79\times 10^{14} s^{-1}

This frequency corresponds to red light

b) Frequency of the light when wavelength is equal to 4.2\times 10^{-7} m

\nu=\frac{c}{\lambda }

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This frequency corresponds to violet light

When we heat rubidium compound we will see red color.

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3 years ago
What is the number of moles in 3.0 X 10^24 atoms of Carbon
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Answer:the number of moles represented by 3.0 x 10^24 atoms of Ag is 0.500mol 0.500 m o l .

Explanation:

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