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ziro4ka [17]
3 years ago
12

What is the density of a book with a mass of 60g and a volume of 20 cm3?

Chemistry
1 answer:
Vaselesa [24]3 years ago
6 0

Answer:

2.5 g/cm3 .

Explanation:

Density is mass in grams over volume in cubic centimeters. So it is 25 g 10 cm 3 =2.5 g/cm 3 The unit is grams per cubic centimeter. NB - density can also be kilograms over cubic meters Hope this helps!

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Sergio039 [100]

The reaction is not balanced

<h3>Further explanation</h3>

Given

Reaction

2Fe(s)+3O₂(g)⇒2Fe₂O₃(s)

Required

The number of atoms

Solution

In a balanced chemical equation, the number of atoms in the compound that reacts (the reactants and products) will have the same number

Reactants : Fe(s)+O₂(g)

Fe = 2 atoms

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Products : Fe₂O₃(s)

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The balanced reaction should be:

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8 0
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