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VMariaS [17]
3 years ago
11

Which element is heavier lead or flourine​

Chemistry
1 answer:
anzhelika [568]3 years ago
4 0
Lead because it’s a type of lead that other things
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HELP ME WITH ONE OR BOTH OF THESE QUEATIONS PLEASEEEE
marta [7]

Answer:

2. 181.25 K.

3. 0.04 atm.

Explanation:

2. Determination of the temperature.

Number of mole (n) = 2.1 moles

Pressure (P) = 1.25 atm

Volume (V) = 25 L

Gas constant (R) = 0.0821 atm.L/Kmol

Temperature (T) =?

The temperature can be obtained by using the ideal gas equation as illustrated below:

PV = nRT

1.25 × 25 = 2.1 × 0.0821 × T

31.25 = 0.17241 × T

Divide both side by 0.17241

T = 31.25 / 0.17241

T = 181.25 K

Thus, the temperature is 181.25 K.

3. Determination of the pressure.

Number of mole (n) = 10 moles

Volume (V) = 5000 L

Temperature (T) = –10 °C = –10 °C + 273 = 263 K

Gas constant (R) = 0.0821 atm.L/Kmol

Pressure (P) =?

The pressure can be obtained by using the ideal gas equation as illustrated below:

PV = nRT

P × 5000 = 10 × 0.0821 × 263

P × 5000 = 215.923

Divide both side by 5000

P = 215.923 / 5000

P = 0.04 atm

Thus, the pressure is 0.04 atm

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3 years ago
Effects of floods??​
Alex17521 [72]

Answer:

they leads to water full of village

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how much energy is required to heat an iron nail with a mass of 25.5 grams from 65° until it becomes red hot at 720 degrees Cels
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2273.6 Joules that’s your answer
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EMERGENCY HELP DUE IN 10 MIN!! I WILL MARK BRAINLIEST WHOEVER ANSWERS FIRST JUST PLS HELP!!
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Answer:

1 float

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Explanation:

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Change the given word equation into balanced equation <br><br>Hydrogen+Chloride=Hydrogen chloride​
nirvana33 [79]

Answer:

h2 +2cl -> 2hcl

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h2 + cl -> HCl

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