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Norma-Jean [14]
4 years ago
10

In a classroom which comparison would a teacher most likely use for describing a mole

Chemistry
1 answer:
irina [24]4 years ago
3 0
Mole - one of the most important concepts in chemistry - is a kind of link to go from the microworld of atoms and molecules in a normal macrocosm grams and kilograms.
In chemistry often have to consider large numbers of atoms and molecules. For fast and efficient calculation made using the weighing method. But it is necessary to know the weight of individual atoms and molecules. In order to identify the molecular weight must be added the weight of all atoms in the compound.
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There is some gas in a container at pressure 136 atm. When 142 dm3 gas is released at pressure of 1 atm,then the pressure of the
mamaluj [8]

Answer:

228.7dm^{3}

Explanation:

According to Boyle's law

P1V1 = P2V2

where P1& P2 are initial and final pressure

and V1& V2 and initial and final volumes respectively.

Given:

P1 = 136atm, P2 = 131.6atm

V1 = 142dm^{3}; V2 = ?

V2 = \frac{P1V1}{P2} = \frac{136*142}{131.6}

= 146.7dm^{3}

Total volume, V = V1 + V2

=146.7 + 142

<u>= 228.7</u>dm^{3}<u></u>

8 0
3 years ago
How do water currents transfer heat different part of the ocean?
likoan [24]

Answer:

Energy in the ocean and the atmosphere

Explanation:

Hope this helps!

3 0
3 years ago
List one difference between blended fibres and regenerating synthetic fibres​
Mashcka [7]

Answer:

blended is better than synthetic fibre. because blended fabrics have quality of synthetic and natural fibres so they are more better than fabrics. For example terrycot. Blended Fibres are considered better than individual synthetic fibres because they show the advantages of 2 or more fibres.

8 0
4 years ago
I’ll give Brainliest please answer also i know this isn’t chemistry but brainly doesn’t have science
Marysya12 [62]

the answer would be iron. divide mass by volume to get density.

6 0
3 years ago
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This is a good riddle. The answer is ICE, because ice can break things, even ships like the titanic and it also makes steel weak but when the sun comes it melts away so it’s cowers away.

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3 years ago
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