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3 years ago

15

The abbreviation for refrigerants containing chlorine fluorine carbon and hydrogen is

1 answer:

slega [8]3 years ago

5 0

<span>The answer is CFCs. The abbreviation stands for Chlorofluorocarbons. They are made by fully halogenating paraffin hydrocarbon. These compounds are known to cause climate change damaging the ozone layer. It is, therefore, advisable to properly dispose off of refrigerators, solvents and propellants</span>

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How is volume calculated given mass and density

Ymorist [56]

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volume is equal to the mass divided by the density (V = M/d).

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What is the wavelength in meters of a wave with a frequency of 3000Hz?

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3 years ago

A 15.5 g piece of chromium, heated to 100.0 degrees Celsius, is dropped into 55.5 g of water at 16.5 degrees Celsius. The final

elixir [45]

Answer: The specific heat capacity of chromium is $2010J/g^0C$

Explanation:

$heat_{absorbed}=heat_{released}$

As we know that,

$Q=m\times c\times \Delta T=m\times c\times (T_{final}-T_{initial})$

$m_1\times c_1\times (T_{final}-T_1)=-[m_2\times c_2\times (T_{final}-T_2)]$ .................(1)

where,

q = heat absorbed or released

$m_1$ = mass of chromium = 15.5 g

$m_2$ = mass of water = 55.5 g

$T_{final}$ = final temperature = $18.9^0C$

$T_1$ = temperature of chromium = $100^oC$

$T_2$ = temperature of water = $16.50^oC$

$c_1$ = specific heat of chromium= ?

$c_2$ = specific heat of water= $4.184J/g^0C$

Now put all the given values in equation (1), we get

$-15.5\times c_1\times (19.5-18.9)=[55.5\times 4.184\times (19.5-100)]$

$c_1=2010J/g^0C$

The specific heat capacity of chromium is $2010J/g^0C$

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3 years ago

How many moles are in 2.64x1024 atoms of Chetnium?

pogonyaev

Answer:

4.38 moles

Explanation:

It is the rounded off answer.

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2 years ago

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