I believe its because oxygen and carbon cant be sperated
This the answer have a good day
A physical change is when a substance experiences a change in its physical characteristics.
For instance, cutting a diamond or a piece of glass
A chemical transformation is one in which one or more new compounds are created.
Iron rusting, for instance.
Both reversible and irreversible physical change are possible.
On the other hand, chemical change is a change that can never be reversed.
a) Electrolysis of molten MgCl2 involves chemical change since new materials are created and MgCl2 cannot be recovered.
The process of electrolysis involves passing an electric current through a substance to cause a chemical change.
Refer to this website to learn more about reversible changes: brainly.com/question/14831707
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Answer:
211.63 g.
Explanation:
- Particles could refer to atoms, molecules, formula units.
- <em>Knowing that every one mole of a substance contains Avogadro's no. of molecules (NA = 6.022 x 10²³).</em>
<em><u>Using cross multiplication: </u></em>
1.0 mole → 6.022 x 10²³ molecules.
??? mole → 8.95 x 10²³ molecules.
- The no. of moles of magnesium acetate = (8.95 x 10²³ molecules) (1.0 mole) / (6.022 x 10²³ molecules) = 1.486 mol.
∴ The grams of magnesium acetate are in 8.95 x 10²³ formula units = n x molar mass = (1.486 mol)(142.394 g/mol) = 211.63 g.
