Question

Write an experiment To show break down of food by using the model of chalk piece kept in vinegar.

Note : please write the following as well :

1. Aim :
2. Materials required :
3. Procedure :
4. Observation :
5. Result :
6. Precautions :

If you don't know please don't answer, if anyone gives silly or irrevelent answers I will report them.

Thankyou!​

Answer 1

Answer:

Chalk piece contains Calcium Carbonate and Vinegar contains Acetic acid, a weak acid. When a Chalk piece is kept in a glass vessel containing Vinegar, it can be observed that the chalk piece dissolves in the solution. ... Acetic acid + Calcium carbonate --> Water + Carbon dioxide + Calcium Acetate.

Answer 2

Answer:

Explanation:

1. Aim :To show breakdown of food by using the model of chalk piece kept in vinegar.

2. Materials required : chalk piece, two small mineral water bottles (!4 ltr bottle),  beakers,  vinegar,  

3. Procedure :

         Acetic acid + Calcium carbonate --> Water + Carbon dioxide + Calcium Acetate.

1) Break a piece of chalk into two halves.

2) Crush one half to tiny pieces leaving the other as it is.

3) Take two small mineral water bottles (!4 ltr bottle) cut them into two equal halves and discard the upper portion.

4) Now we have two beakers from the lower cut portion.

5) Fill them half with vinegar and add the crushed chalk to one beaker and the other uncrushed half chalk to the other.

6) Observe them after half-an-hour or so.

4. Observation :

You may not have realized that regular old chalk fizzes and bubbles when mixed with vinegar. Chalk is made of calcium carbonate and when mixed with vinegar an endothermic chemical reaction occurs that releases carbon dioxide gas. This gas is what causes the fizzing and 5. bubbles.

Result :proved that breakdown of food is an endothermic  reaction