Question

Q.Fill in the blanks in the following statement :

a.When carbon dioxide is passed through lime water, it turns milky due to the formation of____________.

b.The chemical name of baking soda is___________.

c.Two menthods by which rusting of iron can be prevented are__________and_________.

d.Changes in which only_________properties of a substances change are called physical changes.

e.Changes in which new substances are formed are called ___________changes.


#please answer these again please class 7 studies...I can't fin in my test book....the one that I did first true or false if it is false I have to write a correct answer please can you do it​

Answer 1

Answer:

Your answer.......

....

451

Answer 2

Answer:

a. CaCO₃ (Calcium Carbonate)

b. Sodium Bicarbonate

c. Electroplating and Galvanisation

d. Physical

e. Chemical

Explanation:

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