There are 1.86 x 10²⁴ molecules of Silicon dioxide, SiO₂
<h3>Further explanation
</h3>
The mole is the number of particles(molecules, atoms, ions) contained in a substance
Moles can also be determined from the amount of substance mass and its molar mass
1 mol = 6.02.10²³ particles
Can be formulated
N = number of particles
n = mol
No = Avogadro's = 6.02.10²³
3.09 mol of Silicon dioxide, SiO₂
n=mol=3.09
The answer is perpendicular.
Hope that helped u;) ⭐
Answer:
4. Option C. Pentane.
5. Option D.
Explanation:
4. Hydrocarbons are compound containing carbon and hydrogen only. Hydrocarbons are said to be saturated when they contain only carbon to carbon single bond. All alkanes are saturated hydrocarbon.
The correct answer is pentane.
5. Isomerism is the phenomenon whereby two or more compounds have the same molecular formula but different structural patterns. The compounds involved are called isomers.
A careful observation of the diagram above shows that only option D satisfied the definition of Isomerism as the two compound both have the same molecular formula as C3H8O but different structural patterns.
Note: option C does not contain isomers as Isomerism can not occur in a compound having just 1 carbon atom.