Question

2.. When an ant stings a person ,the solution of substance K is rubbed on
the stung area of skin to get relief from pain. The substance K is also used
in kitchen for cooking purposes. Another substance L is sour in taste and
used as a preservative in foods.
When a solution of K is mixed with L ,then a change(N) takes place to
produce bubbles of
gas
0.
a) Identify K
b) What is substance L?
c) What type of change is N?
d) Name the gas o​

Answer 1

Answer:

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Explanation:

avwuvdihde. fuevxjevdigidgjdhjjxjex. 1('9$2!(9=2)9!2(!9:2!8:4)'82"=8:2'9"/6$/6+2@6*1@*1@*5"2=5(1=51!(52"6'(29'(!6(!6(2!(9'(3'9]_™~&]™v¥\™¥]™_^π¥{€^{™€^_]™^%[€^%]√^...%]™^¥]™^%π]%^™%]π^%]™%]`~¥]..._\...^_™^¥™|_^&\™^_\π√β|π_™[β_™[_™]_™^£]¤^√™]¥^π]√^π%\™^]

Answer 2

a) Substance K - Sodium Bicarbonate($NaHCO_{3}$)(Baking soda)

b) Substance L - Vinegar($CH_{3}COOH$)(Acetic acid)

c) Change N - Chemical change

d) Gas O - Carbon Dioxide($CO_{2}$)