Answer:
sorun nedir anlamıyorum seni türkçe yaz
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
![\tt \boxed{\bold{N=n\times No}}](https://tex.z-dn.net/?f=%5Ctt%20%5Cboxed%7B%5Cbold%7BN%3Dn%5Ctimes%20No%7D%7D)
N = number of particles
n = mol
No = Avogadro's = 6.02.10²³
3.09 mol of Silicon dioxide, SiO₂
n=mol=3.09
![\tt N=n\times No\\\\N=3.09\times 6.02\times 10^{23}\\\\N=\boxed{\bold{1.86\times 10^{24}~molecules}}}](https://tex.z-dn.net/?f=%5Ctt%20N%3Dn%5Ctimes%20No%5C%5C%5C%5CN%3D3.09%5Ctimes%206.02%5Ctimes%2010%5E%7B23%7D%5C%5C%5C%5CN%3D%5Cboxed%7B%5Cbold%7B1.86%5Ctimes%2010%5E%7B24%7D~molecules%7D%7D%7D)
Answer: Calcium
Explanation: The chemical element Calcium (Ca), atomic number 20, is the fifth element and the third most abundant <u><em>metal</em></u> in the earth's crust. The metal is trimorphic, harder than sodium, but softer than aluminium.
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