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Andreyy89
2 years ago
5

whoch of the following statments doesnt describe the structure of a atowhich of the following do not describe the structure of a

n atom inside the nucleus of an atom are protons and neutrons protons are positively charged subatomic co-product electrons are negatively charged subatomic particles most of the mass of the atom comes from the electron cloud
Chemistry
1 answer:
ra1l [238]2 years ago
5 0

Answer : The incorrect option is, The most of the mass of the atom comes from the electron cloud.

Explanation :

There are three basic particles of an atom which are neutrons, protons and electrons.

The nucleus which is present in the center of an atom that contains the neutrons and the protons. The protons are positively charged and neutrons has no charge.

The outer region of an atom contains the electrons and the electrons are negatively charged.

As per given options, the statement which is the most of the mass of the atom comes from the electron cloud is incorrect statement because the most of the mass comes from the nucleus in which protons and neutrons are present.

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<span>When calcium hydroxide dissolves, it dissociates into Ca(OH)2 = Ca2+ and 2OH- Let's assign the variable X for the solubility of Ca2+ and OH I.e Ca2+ = X and 2OH- = 2X Then Ksp = [Ca2+][OH-]^2 So we have (X) (2X)^2 = 5.02 * 10^(-6) 4X^3 = 5.02 * 10 ^(-6) X^3 = 5.02 * 10^(-6) / 4 X^3 = 0.003110 X = 0.1459</span>
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3 years ago
A reaction takes place that results in an amount of 585 grams of product that is recovered. The theoretical amount calculates to
lisov135 [29]

Answer:

90%

Explanation:

Data obtained from the question include:

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XH_{3}
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