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2 years ago

How do protons neutrons and electrons affect the overall charge of an atom

Chemistry

1 answer:

aleksklad [387]2 years ago

5 0

Answer:

It determines the stability electric state of the atom

Explanation:

Now atoms are stable depending on the number of neutrons they have in their nuclei. If the no of electrons Equal no of protons then the atom is said to be neutral

bear in mind that neutrons have no charge so they don't affect the atom's electric state.

it's the neutrons that determines the atom's radioactive state

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1. A sample of polystyrene is found to have a number-average molar mass of 89,440 g mol−1 . Neglecting contributions from end gr

Snowcat [4.5K]

Answer:

The weight-average molar mass of polystyrene is 134,160 g/mol.

Explanation:

Molar mass of the monomer styrene , $C_8H_8$ , M=104 g/mol

Given , number average molar mass of the polymer , M'= 89,440 g/mol

Degree of polymerization = n

$n=\frac{M'}{M}=\frac{89,440 g/mol}{104 g/mol}=860$

The weight-average molar mass = $M_{avg}=?$

Molar mass dispersity is ratio of weight-average molar mass to the number average molar mass of the polymer.

$\text{Molar mass dispersity}=\frac{M_{avg}}{M'}$

$1.5=\frac{M_{avg}}{89,440 g/mol}$

$M_{avg}=89,440 g/mol\times 1.5 = 134,160 g/mol$

The weight-average molar mass of polystyrene is 134,160 g/mol.

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2 years ago

Porque la quimica tiene relacion con otras ciencias

Sergeeva-Olga [200]

Answer:

Explanation:

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2 years ago

A chemical reaction takes place in which energy is absorbed. Arrange the characteristics of the reaction in order from start to

marshall27 [118]

Endothermic reactions, on the other hand, absorb heat and/or light from their surroundings. For example, decomposition reactions are usually endothermic. In endothermic reactions, the products have more enthalpy than the reactants. Thus, an endothermic reaction is said to have a positive<span> enthalpy of reaction. This means that the energy required to break the bonds in the reactants is more than the energy released when new bonds form in the products; in other words, the reaction requires energy to proceed.</span>

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2 years ago

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Which element has a higher first ionization energy than chlorine (Cl)?

4vir4ik [10]

Answer:

Argon

Explanation:

It has more electron than chlorine

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2 years ago

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