How is molecular polarity determined?

1 answer:

7 0

Answer: Cuando esto ocurre, la molécula se considera polar. Puedes determinar la polaridad de una molécula analizando sus enlaces, probando la forma en la que interactúa con otras sustancias polares u observando su reacción a un campo electromagnético. Método 1 Dibujar las estructuras de puntos de Lewis

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Scientists use their to make observations

frosja888 [35]

Microscopes?
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2 years ago

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Predict how many antacid tablets it would take to produce 120 mL of CO2 gas

Alja [10]

The question does not mention the brand or size of antacid tablets, but some research in the internet shows that for a very common brand, Alka Seltzer, that it takes about 4 tablets to produces 60 mL of gas. So for 120mL it will take 120/60 x 4 or 8 tablets to produce 120 mL of CO2 gas.

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2 years ago

The piece of iron that miguel measured had a mass of 51.1 g and a volume of 6.63 cm 3 . what did miguel calculate to be the dens

likoan [24]

Given:
Mass, m = 51.1 g
Volume, V = 6.63 cm³

By definition,
Density = Mass/Volume
= (51.1 g)/(6.63 cm³)
= 7.7074 g/cm³

In SI units,
Density = (7.7074 g/cm³)*(10⁻³ kg/g)*(10² cm/m)³
= 7707.4 kg/m³

Answer: 7.707 g/cm³ or 7707.4 kg/m³

4 0

3 years ago

Which of the following compounds is a gas at room temperature? A : CH3CH2OH B : CH3CH2CH2CH2CH2CH2CH3 C : CH3CH2CH3 D : HOCH2CH2

attashe74 [19]

Answer:

C. $CH_3CH_2CH_3$

Explanation:

Molecules with the stronger intermolecular forces are pulled tightly together to form solid at higher temperatures and that's why the freezing point is higher.

Also, molecules with the stronger intermolecular force have greater interaction between the molecules and thus on heating do not boil easily and have high boiling point also.

Thus, melting point and boiling point increases with increase in number of carbon atoms and also increase in intermolecular forces (like hydrogen bonding, if present).

Thus, the compound which is gas at room temperature is $CH_3CH_2CH_3$ because it has least number of carbon atoms and absence of hydrogen bonding.

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3 years ago

Please help me, trying to get all my hw done

AnnZ [28]

Answer:

Explanation:

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