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2 years ago

6

Which of the following elements is likely to show additional stability in its electronic configurations because of filled and ha

lf filled shell stability?
Au

Rh

Os

Ir

1 answer:

kodGreya [7K]2 years ago

3 0

Ah is gold and Rh is rhodium and Os is osmium and Ir iridium

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What kind of small objects composes much of the universe

Ivanshal [37]

I believe it would be A) atoms because atoms are pretty much the smallest unit of matter.......hope it helps:)

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3 years ago

What is the final temperature, in degrees Celsius, of the gas in the bubble outside the volcano if the final volume of the bubbl

lawyer [7]

The question is incomplete, here is the complete question:

A 127 mL bubble of hot gases at 213°C and 1.89 atm is emitted from an active volcano.

What is the final temperature, in degrees Celsius, of the gas in the bubble outside the volcano if the final volume of the bubble is 136 mL and the pressure is 0.850 atm , if the amount of gas does not change?

<u>Answer:</u> The temperature of the gas is -40°C

<u>Explanation:</u>

To calculate the volume when temperature and pressure has changed, we use the equation given by combined gas law.

The equation follows:

$\frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}$

where,

$P_1,V_1\text{ and }T_1$ are the initial pressure, volume and temperature of the gas

$P_2,V_2\text{ and }T_2$ are the final pressure, volume and temperature of the gas

We are given:

$P_1=1.89atm\\V_1=127mL\\T_1=213^oC=[213+273]K=484K\\P_2=0.850atm\\V_2=136mL\\T_2=?$

Putting values in above equation, we get:

$\frac{1.89atm\times 127mL}{484K}=\frac{0.850atm\times 136mL}{T_2}\\\\T_2=\frac{0.850\times 136\times 484}{1.89\times 127}=233K$

Converting the temperature from kelvins to degree Celsius, by using the conversion factor:

$T(K)=T(^oC)+273$

$233=T(^oC)+273\\\\T(^oC)=-40^oC$

Hence, the temperature of the gas is -40°C

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3 years ago

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yuradex [85]

1 mole ------------- 6.02 x 10²³ atoms
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<span> = </span>4.2 x 10²³ atoms zinc

<span>hope this helps!</span>

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3 years ago

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anyanavicka [17]

We can’t see the choice

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2 years ago

1.For the first ten reactions, write a balanced reaction for each tube in which a reaction occurred. If there was no reaction, w

slamgirl [31]

The equations of reaction occurring in the tubes are as follows:

2 MnO₄⁻ + 6 Br⁻ + 8 H⁺ → 2 MnO₂ + 3 Br₂ + 4 H₂O
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<h3>What are the reactions occurring in the tubes?</h3>

The reactions occurring in the tubes are redox reactions.

Based on the table the equations of reaction are as follows:

2 MnO₄⁻ + 6 Br⁻ + 8 H⁺ → 2 MnO₂ + 3 Br₂ + 4 H₂O
2 MnO₄⁻ + 6 I⁻ + 8 H⁺ → 2 MnO₂ + 3 I₂ + 4 H₂O
No reaction
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In conclusion, redox reaction are reactions in which electrons are transferred.

Learn more about redox reactions at: brainly.com/question/26750732

#SPJ1

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1 year ago