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lord [1]
3 years ago
13

Which part of dalton's theory did thomson's findings dispute? atoms of different elements have different masses. atoms of the sa

me element have the same mass. the atom is the smallest known particle of matter. compounds contain atoms of more than one element?
Chemistry
2 answers:
Stolb23 [73]3 years ago
8 0

Answer: the atom is the smallest known particle of matter.

Explanation:

Postulates of Dalton's atomic theory:

Atom are indivisible and are the smallest constituents of matter.

Atoms of same element have similar mass.

Atoms of different elements have different mass.

Elements combine with each other in whole number ratios to form compounds.

Thomson found the negatively charged particles called electrons and told they are embedded in a soup of positively charged sphere.

Thus the part of dalton's theory that thomson's findings dispute is Atom are indivisible and are the smallest constituents of matter.

skad [1K]3 years ago
7 0
Answer is: the atom is the smallest known particle of matter.
John Dalton claimed that atom is indestructible and a<span>ll atoms of a given element are identical in mass and properties.
</span>Thomson discovered electron and found the first evidence for isotopes<span> of a stable element.</span>


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Answer:

E) The rate of the reaction is directly proportional to the concentration of the reactant.

Explanation:

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C) The rate of the reaction is proportional to the square root of the concentration of the reactant.

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Why are atoms considered the building blocks life?
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7 0
2 years ago
1.42 mol sample of neon gas at a temperature of 13.0 °C is found to occupy a volume of 25.5 liters. The pressure of this gas sam
Dima020 [189]

Answer: 996 mmHg

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According to the ideal gas equation:

PV=nRT

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V= Volume of the gas = 25.5 L

T= Temperature of the gas = 13°C = (273+13) K  = 286K

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P=\frac{nRT}{V}=\frac{1.42\times 0.0821\times 286}{25.5}=1.31atm=996mmHg      (760mmHg=1atm)

Thus pressure of this gas sample is 996 mm Hg.

3 0
3 years ago
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The main function sis the 2nd one and the substance provides the first 1.

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