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lozanna [386]
4 years ago
10

What does Avogadro’s number represent? the number of atoms in 12 grams of the isotope carbon 12 the number of atoms in 120 grams

of the isotope carbon 12 the number of atoms in 1 kilogram of the isotope carbon 12 the number of atoms in 1 gram of the isotope carbon 12
Chemistry
2 answers:
Step2247 [10]4 years ago
7 0

Answer:

the number of atoms in 12 grams of the isotope carbon 12

Explanation:

Avogadro’s number represent the number of the constituent particles which are present in one mole of the substance. It is named after scientist Amedeo Avogadro and is denoted by N_0.

Also, it is the number of particles in exactly 12.000 g of isotope carbon 12.

Avogadro constant:-  N_0=6.023\times 10^{23}

<u>Hence, correct answer:- the number of atoms in 12 grams of the isotope carbon 12</u>

Julli [10]4 years ago
4 0
The number of atoms in 12 grams of the isotope carbon 12.
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6 0
4 years ago
Which of the following coefficients are needed to balance the combustion reaction of ethanol?
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5 0
3 years ago
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Aleks04 [339]

The efficiency : 95%

<h3>Further explanation</h3>

Efficiency : the ratio between output and input work

In general, the value of the output of a machine is less than the value of the input because of the frictional force in the machine.

The greater the efficiency of the engine, the better the machine

Can be formulated :

\tt E=\dfrac{W_{out}}{W_{in}}\times 100\%

w output = 190 J

W input = 200 J

The efficiency :

\tt E=\dfrac{190}{200}\times 100\%=95\%

7 0
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