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Genrish500 [490]

3 years ago

12

6. Which of the following statements is one of the postulates in Dalton's atomic theory?

1 answer:

bearhunter [10]3 years ago

7 0

Answer:

D is correct. Atoms of the same element are the same

Explanation:

6. Which of the following statements is one of the postulates in Dalton's atomic theory?

A) All atoms are all the same.

B) Only some elements are composed of atoms.

C) Atoms of the same element are different.

D Atoms of the same element are identical.

D is correct. Atoms of the same element are the same

Atoms of different elements are different

when different atoms combine, they do this in simple ratios and form molecues which are the building block of compounds

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gavmur [86]

Answer:

The Unknown V was shiny and gray, but it was a lightweight metal. THE UNKNOWN METALS5V was aluminum, which has a density of 2.75 g/ml(Smith, 2019).

Explanation:

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Answer:

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How many bonding electrons are drawn in NH4+1?

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Answer:

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Explanation:

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3 years ago

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3 years ago

A 100.0mL bubble of hot gases at 225 C and 1.80 atm escapes from an active volcano, what is the new volume of the bubble outside

Inessa05 [86]

<h3>Answer:</h3>

112.08 mL

<h3>Explanation:</h3>

From the question we are given;

Initial volume, V1 = 100.0 mL
Initial temperature, T1 = 225°C, but K = °C + 273.15

thus, T1 = 498.15 K

Initial pressure, P1 = 1.80 atm
Final temperature , T2 = -25°C

= 248.15 K

Final pressure, P2 = 0.80 atm

We are required to calculate the new volume of the gases;

According to the combined gas law equation;

$\frac{P1V1}{T1}=\frac{P2V2}{T2}$

Rearranging the formula;

$V2=\frac{P1V1T2}{T1P2}$

Therefore;

$V2=\frac{(1.80atm)(100mL)(248.15K)}{(498.15K)(0.80atm)}$

$V2=112.08mL$

Therefore, the new volume of the gas is 112.08 mL

8 0

3 years ago