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hammer [34]
3 years ago
11

Cryosphere definition earth science

Chemistry
2 answers:
miss Akunina [59]3 years ago
5 0

The cryosphere is those portions of Earth's surface where water is in solid form, including sea ice, lake ice, river ice, snow cover, glaciers, ice caps, ice sheets, and frozen ground.

Olin [163]3 years ago
4 0

The cryosphere is those portions of Earth's surface where water is in solid form, including sea ice, lake ice, river ice, snow cover, glaciers, ice caps, ice sheets, and frozen ground. Thus, there is a wide overlap with the hydrosphere

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A piece of gold jewelry weighs 11.54 g and has a volume of 0.675 cm3. The jewelry contains only gold (density = 19.3 g/cm3) and
lbvjy [14]

Answer:

Percentage of gold = 84.6%

Explanation:

Suppose the jewelry has x g of gold and y g of silver

The mass of both is the total mass of the jewelry then:

x + y = 11.54

And as the problem says the total volume is the sum of both volumes.

volume = mass / density

\frac{x}{19.3} + \frac{y}{10.5} = 0.675

Solving the system you get:

x = 9.764 g

y = 1.776 g

The percentage of gold in the jewelry is:

X_{gold} = \frac{9.764}{11.54} * 100 = 84.6\%

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