2 years ago

Please help, I’m a bit confused, lol

Chemistry

1 answer:

Mashutka [201]2 years ago

4 0

Explanation:

option A skeleton system is correct option

hope this helps you !

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alukav5142 [94]

Its the third answer

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3 years ago

Calculate the number of moles of C2H6 in 6.29×1023 molecules of C2H6.

Kipish [7]

1.05moles

Explanation:

Given parameters:

Number of molecules of C₂H₆ = 6.29 x 10²³molecules

Unknown:

Number of moles = ?

Solution:

The mole is the amount of substances that contains Avogadro's number of particles i.e 6.02 x 10²³

To find the number of moles:

number of moles = $\frac{number of particles}{Avogadro's number}$

number of moles = $\frac{6.29 x 10^{23} }{6.02 x 10^{23} }$

number of moles = 1.05moles

Learn more:

moles brainly.com/question/1841136

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21) Scientists represent elements by using<br> a formulas b. subscripts<br> c. symbols<br> d. words

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They represent elements by using symbols

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How many moles of sodium ions are present in 0.25 kg of a 2.0 m solution of sodium chloride in water

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0.50 is the answer on edge

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3 years ago

A 133.8-gram sample of bronze was 10.3% tin by mass. Determine the total mass of tin in the sample.

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