The dichloromethane (DCM) has less density than water and also the polarity of water is much more than DCM. So the mixture of water and dichloromethane will always be a heterogeneous mixture. In the mixture dichloromethane will be always up of the water layer. The volume of the separatory funnel which contains the mixture of DCM and water must have to be more than the total volume of the liquids thus the volume of the funnel will be more than (50+50) = 100mL.
The caution have to consider during the separation are-
1. The separatory funnel have to shake well with lid and have to settle down for some times until the two liquid separated.
2. The lid should be open very slowly as the vapor pressure of DCM is more and it will float on the water.
3. After this the stopcock should be opened and slowly the water will come out first followed by DCM.
NA and CL
Na and F
IONIC OCCURS BETWEEN METALS AND NON METALS
The answer is c) to repair and replace other cells.
Cell division is the replication of cells by dividing itself into two, it does not prevent replication. Cell division does not make glucose either and cell division does not make ATP.
The role of the salt bridge is to assure the neutrality of both compartments.
You can find out what mineral it is when you bring it with you after you hike. You can bring it to a laboratory that specializes on mineral rocks for testing. They know what they should do to find out what it is. Hope this helps. Have a nice day.
