C... The number of neutrons ranges from 1H with 0 neutron, 2H with 1 neutron and 3H with 2 neutrons.
Answer:

Explanation:
Hello,
In this case, given the described concept regarding the Avogadro's number, we can easily notice that 27.0 g of aluminium foil has 6.022x10²³ atoms as shown below based on the mass-mole-particles relationship:

Notice this is backed up by the fact that aluminium molar mass if 27.0 g/mol.
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Homogeneous because it is unable to be distinguished of the components Water and Salt
Answer:
1 ethanol is right answer
Explanation:
CH3- CH2-OH
I
0.5
I hope this helps
Sorry if I’m wrong