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11Alexandr11 [23.1K]
3 years ago
15

A student measures the mass of an 8 cm^3 block of brown sugar to be 12.9 g. What is the density of

Chemistry
1 answer:
Oduvanchick [21]3 years ago
4 0

Answer:

1.6125 g/cm^3

Explanation:

Density= mass/volume

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How do the properties of the elements change as you move across a period on a periodic table from left to right?
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Iron has a density of 7.86 g/cm3. Calculate the volume (in dL) of a piece of iron having a mass of 4.07 kg . Note that the densi
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Answer:

The volume of the piece of iron is 5.18dL.

Explanation:

The density (ρ) is equal to the mass (m) divided the volume (V).

\rho = \frac{m}{V}

If we rearrange it, we have:

V=\frac{m}{\rho }

To express the volume in dL we will need the following relations:

  • 1 dL = 0.1 L
  • 1 kg = 10³ g
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Then,

\rho = \frac{7.86g}{cm^{3} } .\frac{1cm^{3} }{1mL} .\frac{1mL}{10^{-3}L } .\frac{1kg}{10^{3}g } =7.86kg/L

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4. Which class of matter is the least evenly
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Answer:

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Explanation:

Mixtures in two or more phases are heterogeneous mixtures. ... The exception would be solutions that contain another phase of matter. For example, you can make a homogeneous solution of sugar and water, but if there are crystals in the solution, it becomes a heterogeneous mixture.

8 0
3 years ago
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