How many kilograms of chlorine are in 21 kg of cf2cl2

Answer : The mass of chlorine present in sample is 12.32 kilograms.

Explanation :  Given,

Mass of = 21 kg = 21000 g     (1 kg = 1000 g)

First we have to calculate the moles of .

Molar mass of = 121 g/mole

Now we have to calculate the moles of chlorine.

In the molecule , there are 1 mole of carbon, 2 moles of fluorine and 2 moles of chlorine.

As, 1 mole of contains 2 moles of chlorine

So, 173.5 moles of contains moles of chlorine

Now we have to calculate the mass of chlorine.

Molar mass of chlorine = 35.5 g/mole

Therefore, the mass of chlorine present in sample is 12.32 kilograms.

the dependant variable is spilled water

the independent is the heat

the answer is minerals.