For the first question, the correct answer would be 44.51 kJ. It is calculated by multiplying the amount of the substance in moles by the heat of the solution. For the second question, the correct answer would be a catalyst causes <span>a lowering the activation energy barrier.</span>
The number of atoms that are present in 24g Carbon sample is
<h3>What is atom?</h3>
An atom can be regarded as the basic building block of chemistry and it is the smallest unit.
The Relative Molecular Mass of Carbon is known to be (12 g)
The Mass of the item was given as 24 g
Then we can find the Moles as ( 24g Carbon sample/24 g) = 2
Then the Number of atoms can be calculated as the
( Avogadro Number*Moles)
Therefore, the number of atoms that are present in 24g Carbon sample is 12.044*10^23
Learn more about atoms at;
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CHECK THE COMPLETE QUESTION BELOW
How many atoms are present in 24g Carbon sample?
D neutrons. Theoretically, isotopes have different atomic mass but they do have a similar no. of protons. Having said that, subtracting protons with the different atomic masses results in different no. of neutrons.
Answer:
azufre
Explanation:
El azufre es un mal conductor del calor y aislante de la electricidad.