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zavuch27 [327]
3 years ago
11

Which of these solids are most likely amorphous solids? Select all that apply. rubber sugar plastic glue stick candle wax bronze

graphite emerald
Chemistry
2 answers:
oee [108]3 years ago
8 0

Answer:

In this case the solid amorphous are:

rubber

plastic

glue

wax candle

Explanation:

Hello!

We will answer this!

Amorphous solids are solids in which their molecules are in a disorderly state. This causes the solid not to have a defined shape.

Crystal solids, on the other hand, have a defined structure.

In this case the solid amorphous are:

rubber

plastic

glue

wax candle

labwork [276]3 years ago
5 0

Rubber

Plastic

Glue stick

Candle wax

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pH= 3.82

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Calculate the number of formula units in 2.50 mol NaNO
marta [7]

The number of formula units in 2.50 mol of the compound is  15.1 * 10^23.

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3 0
2 years ago
How do you obtain oxide from a mixture?
emmainna [20.7K]

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Antarctica, almost completely covered in ice, has an area
Marysya12 [62]

<u>Answer:</u> The mass of ice is 2.39\times 10^{22}g

<u>Explanation:</u>

We are given:

Area of Antarctica = 5,500,000mi^2=5,500,000\times 2.59\times 10^{10}=142.45\times 10^{15}cm^2      (Conversion factor:  1mi^2=2.59\times 10^{10}cm^2  )

Height of Antarctica with ice = 7500 ft.

Height of Antarctica without ice = 1500 ft.

Height of ice = 7500 - 1500 = 6000 ft = 182.88\times 10^3cm     (Conversion factor:  1 ft = 30.48 cm)

To calculate mass of ice, we use the equation:

\text{Density of a substance}=\frac{\text{Mass of a substance}}{\text{Volume of a substance}}

We are given:

Density of ice = 0.917g/cm^3

Volume of ice = Area × Height of ice = 142.45\times 10^{15}cm^2\times 182.88\times 10^3cm=26051.26\times 10^{18}cm^3

Putting values in above equation, we get:

0.917g/cm^3=\frac{\text{Mass of ice}}{26051.26\times 10^{18}cm^3}\\\\\text{Mass of ice}=(0.917g/cm^3\times 26051.26\times 10^{18}cm^3=2.39\times 10^{22}g

Hence, the mass of ice is 2.39\times 10^{22}g

5 0
3 years ago
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