Question

Carbon tetrachloride and water how are ther separated

Answer 1

1. Carbon tetrachloride is 1.6 times heavier than water. 
2. Carbon tetra chloride and water do not mix. 

So when you mix these two liquids, the water floats on the surface of the tetrachloride forming clear layers and can be easily separated. There is a glass device whichn is used to separate these liquids. It is called a separating funnel. This is a bottle like device which has a tap at the bottom. When you put a mixture of the two liquids in this device, the carbon tetrachloride forms the lower layer. If yu open the tap carefully, the tetrachloride comes out first and can be taken out completely. The upper layer of water remains in the funnel. 
So you have separated the two liquids. 

The two liquids are separated because their specific gravities are different . So this method is called " Gravity separation "