Can you plz Answer the questions of activity 3.1 in ncert textbk of science
1. In activity 3.1 , there are two sets of chemicals X and Y. Let say , a 5 % solution of Copper sulphate
(CuSO4) from X and Sodium carbonate (Na2CO3) from Y.
2. A little amount of Y in a conical flask is taken and some amount of solution of X is taken in an ignition tube.
3. Then the ignition tube is hanged carefully in the flask so that both the solutions do not get mixed with each other.
4. Cork was put on the mouth of the flask.
5. Then the flask was weighed carefully with its contents.
6. Now , the flask get tilted and both the solution of X and Y get mixed.
7. Then the flask was again weighed.
Hence, the mass of the contents before mixing and after mixing will be same. As mass will remain conserved in a chemical reaction. It will neither be created nor be destroyed.
(CuSO4) from X and Sodium carbonate (Na2CO3) from Y.
2. A little amount of Y in a conical flask is taken and some amount of solution of X is taken in an ignition tube.
3. Then the ignition tube is hanged carefully in the flask so that both the solutions do not get mixed with each other.
4. Cork was put on the mouth of the flask.
5. Then the flask was weighed carefully with its contents.
6. Now , the flask get tilted and both the solution of X and Y get mixed.
7. Then the flask was again weighed.
Hence, the mass of the contents before mixing and after mixing will be same. As mass will remain conserved in a chemical reaction. It will neither be created nor be destroyed.