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Nostrana [21]
2 years ago
5

The periodic table is based on an element's

Chemistry
2 answers:
uranmaximum [27]2 years ago
7 0

The correct answer is:

B.  atomic number.


Stels [109]2 years ago
4 0
The answer will be B.
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Answer:

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A water molecule is composed of two hydrogen atoms and one oxygen atom arranged in a bent shape. Since oxygen is significantly m
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Answer: A)  polar molecule  

Explanation: Polar molecules are molecules which contain atoms of different electronegativities.

Non polar molecules are molecules which contains atoms of same electronegativities.

Water is a polar covalent molecule formed by unequal sharing of electrons. Oxygen being more electronegative tend to keep the electron pair towards itself thus generating a partial negative charge. The hydrogen acquire a partial positive charge thus resulting in a polar molecule.

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3 years ago
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During a reaction, the enthalpy of formation of an intermediate is 34 kJ/mol. During the reaction, 4 moles of the intermediate a
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The enthalpy change for the formation step of this intermediate is 136 kJ/mol.

<h3>What is the enthalpy?</h3>

The enthalpy of reaction can be obtained from the enthalpies of formation of the species involved. The enthalpy of reaction is the heat evolved or absorbed in a reaction.

Thus, the enthalpy change for the formation step of this intermediate is 4 *  34 kJ/mol = 136 kJ/mol.

Learn more about enthalpy change:brainly.com/question/4526346

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2 years ago
What types of compounds do not dissolve in water?
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Oil doesn't dissolve in water, which could be your answer.
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3 years ago
The first IE of neon (atomic number 10) is significantly higher than that of argon (atomic number 18) but significantly
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