Question

SCIENCE.pdf
Open with Google Docs
Section B
21. Observe the figure given below and answer the following questions:
Gas
Acid + sodium
carbonate
Lime water
a)Name the gas released.
b) Write the effect of gas on lime water.
c) Write the chemical equation for the reaction.
(2)
22. Write the two differences between physical changes and chemical changes.
(2)
23.State the order of colours formed by the prism A and B as shown in the figure.
(2) SCIENCE.pdf
Open with Google Docs
Section B
21. Observe the figure given below and answer the following questions:
Gas
Acid + sodium
carbonate
Lime water
a)Name the gas released.
b) Write the effect of gas on lime water.
c) Write the chemical equation for the reaction.
(2)
22. Write the two differences between physical changes and chemical changes.
(2)
23.State the order of colours formed by the prism A and B as shown in the figure.
(2)​cza-czsm-xju​

Answer 1

Answer:

ji if yyuuhh

Explanation:

7766ijjhh

huuuhhujg