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mezya [45]
3 years ago
15

Is a pencil a compound or an element and is a pencil heterogeneous or homogeneous

Chemistry
2 answers:
masya89 [10]3 years ago
6 0

Answer:

Pencil is an element and a heterogeneous mixture

Explanation:

miskamm [114]3 years ago
6 0

Answer:

Pencil is an element and a heterogeneous mixture

Explanation:

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In the reaction represented by the equation 2Al2O3-->4Al+3O2, what is the mole ratio of aluminum to oxygen?

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A 40-lb container of peat moss measures 14× 20× 30 in. A 40-lb container of topsoil has a volume of 1.9 gal. Calculate the avera
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The average density of the peat moss in units of g/cm³ is 2.52 g/cm³

<h3>How to convert 40 lb to grams (g)</h3>

We'lol begin by converting 40 lb to grams (g). This can be obtained as follow:

1 lb = 453.592 g

Therefore,

40 lb = (40 × 453.592) / 1 lb

40 lb = 18143.68 g

<h3>How to convert 1.9 gal to cm³</h3>

We can convert 1.9 gal to cm³ as follow:

1 gal = 3785.41 cm³

Therefore,

1.9 gal = (1.9 gal × 3785.41 cm³) / 1 gal

1.9 gal = 7192.279 cm³

<h3>How to determine the density </h3>

The density can be obtained as follow:

  • Mass = 18143.68 g
  • Volume = 7192.279 cm³
  • Density =?

Density = mass / volume

Density = 18143.68 / 7192.279

Density = 2.52 g/cm³

Learn more about density:

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What is an atom?explain it plz.
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It is the smallest unit it is what makes up everything

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What is the relationship between ionization energy and the
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The molecules of DNA produced in replication are...
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