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1 year ago

Which of the following is not a part of the ideas john dalton proposed in his model

1 answer:

4 0

The following which is not a part of Dalton atomic theory is the properties of atoms of the same elements can be different . Thus option B is correct.

<h3>What is Dalton atomic theory?</h3>

Dalton has proposed his theory in three parts and each part stated that

The first portion of his theory asserts that all stuff is made up of indivisible atoms.

According to the second section of the theory, all atoms of a given element have the same mass and characteristics.

Compounds, according to the third section, are combinations of two or more different types of atoms.

Dalton has given three laws

Law of conservation of mass
Law of definite proportion
Law of multiple proportion

Thus, the following which is not a part of Dalton atomic theory is the properties of atoms of the same elements can be different . Thus option B is correct.

To learn more about Dalton atomic theory, refer to the link below:

brainly.com/question/11855975

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Your question is incomplete, but your complete question was

which of the following is not a part of the ideas john dalton proposed in his model

A. All matter is composed of indivisible atoms.

B. The properties of atoms of the same element can be different.

C. Compounds form when atoms combine in whole number ratios.

D. An atom can neither be created nor destroyed.

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B is most volatile, A is least volatile

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Para el elemento de Z-56 b, que formula minima tiene el compuesto que forma con 17-cl¿ c, que tipo de union hay en dicho compues

inessss [21]

Answer:

ver explicacion

Explanation:

El elemento que tiene el número atómico 56 en la tabla periódica del bario. El bario es un elemento del grupo dos.

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3 years ago

If 20.0g of CO2 and 4.4g of CO2

Ksivusya [100]

The given question is incorrect. The correct question is as follows.

If 20.0 g of $O_{2}$ and 4.4 g of $CO_{2}$ are placed in a 5.00 L container at $21^{o}C$ , what is the pressure of this mixture of gases?

Explanation:

As we know that number of moles equal to the mass of substance divided by its molar mass.

Mathematically, No. of moles = $\frac{\text{mass}}{\text{molar mass}}$

Hence, we will calculate the moles of oxygen as follows.

No. of moles = $\frac{\text{mass}}{\text{molar mass}}$

Moles of $O_{2}$ = $\frac{20.0 g}{32 g/mol}$

= 0.625 moles

Now, moles of $CO_{2} = \frac{4.4 g}{44 g/mol}$

= 0.1 moles

Therefore, total number of moles present are as follows.

Total moles = moles of $O_{2}$ + moles of $CO_{2}$

= 0.625 + 0.1

= 0.725 moles

And, total temperature will be:

T = (21 + 273) K = 294 K

According to ideal gas equation,

PV = nRT

Now, putting the given values into the above formula as follows.

P = $\frac{nRT}{V}$

= $\frac{0.725 mol \times 0.08206 Latm/mol K \times 294 K}{5.00 L}$

= $\frac{17.491089}{5}$ atm

= 3.498 atm

or, = 3.50 atm (approx)

Therefore, we can conclude that the pressure of this mixture of gases is 3.50 atm.

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3 years ago

If a question cannot be tested and observed, it cannot be answered with science. (2 points) True or False?

boyakko [2]

Answer:

True

Explanation:

If a question cannot be tested and observed, it cannot simply be answered by science.

Science works with observable and testable ideas and not on metaphysics.

Science presents a methodical approach into investigating phenomenon and answering likely questions in a logical manner.
The body of facts and data gathered through observations and tests are used to ramify the conclusion of a scientific study.
Without such, it is impossible to do the work of science.

3 0

3 years ago