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V125BC [204]
3 years ago
7

Which substance would cool down faster concrete or iron

Chemistry
1 answer:
Olin [163]3 years ago
7 0
Personal experience from Ag Mech classes-Concrete cools faster than metal.
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How many moles are equal to 89.23g of calcium oxide, CaO?
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1.59moles

Explanation:

Mass  of CaO = 89.23g

Unknown

Number of moles = ?

Solution:

The mole is a unit of measurement in chemistry used to delineate the number of particles an atom contains.

A mole of a substance contains the avogadro's number of particles.

Number of moles = \frac{mass}{molar mass}

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learn more:

Number of moles brainly.com/question/1841136

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