3 years ago

HELP Which is a force that holds atoms together?

Chemistry

2 answers:

tatyana61 [14]3 years ago

5 0

Answer: chemical bond

Explanation: took quiz - right

Citrus2011 [14]3 years ago

3 0

Answer:

Chemical Bond

Explanation:

A Chemical Bond holds atoms together.

All of the others only apply to the parts within the atom. A chemical formula is just a written formula.

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A gas balloon has a volume of 106.0 liters when the temperature is 25.0 °C and the pressure is 740.0 mm Hg. What will its volume

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Answer : The final volume of gas will be, 103.3 L

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The combined gas equation is,

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

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$P_1$ = initial pressure of gas = 740.0 mmHg = 98.4 kPa

Conversion used : (1 mmHg = 0.133 kPa)

$P_2$ = final pressure of gas = 99.3 kPa

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$V_2$ = final volume of gas = ?

$T_1$ = initial temperature of gas = $25.0^oC=273+25.0=298K$

$T_2$ = final temperature of gas = $20.0^oC=273+20.0=293K$

Now put all the given values in the above equation, we get:

$\frac{98.4kPa\times 106.0L}{298K}=\frac{99.3kPa\times V_2}{293K}$

$V_2=103.3L$

Therefore, the final volume of gas will be, 103.3 L

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4 years ago