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schepotkina [342]
3 years ago
12

What is the density of a piece of wood that has a mass of 25.0 g and a volume of 29.4 mL?

Chemistry
1 answer:
olga55 [171]3 years ago
6 0

Answer:

0.850 g / cm3

Explanation:

The problem can be solved using the formula:

Density = mass / volume

Since two of the data are already provided in the problem, just plug in the values to the formula.

(Rearrangement of the formula from its standard form is not necessary at all)

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Viktor [21]

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Explanation:

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5 0
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which of the following results when iron and oxygen react? 1.fe2o3 corrodes 2.hydrated iron forms 3.iron oxide forms 4.a shiny m
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Answer:

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Explanation:

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6 0
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A sample of the compound magnesium oxide is synthesized as follows. 60. g of magnesium is burned and produces 100. g of magnesiu
Inga [223]

Answer:

30 g of magnesium would be combined with 20 g of oxygen. The law used solving this problem is the Lavoisier Law of conservation of mass.

Explanation:

If 60 g of magnesium combines with 40 g of oxygen to make 100 g of magnesium oxide, then 30 g of magnesium will combine with 20 g of oxygen to make 50 g of magnesium oxide.

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The following equation represents the proportions of the substances:

Mg + 1/2O₂ → MgO

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