Question

Answer the above ⬆⬆⬆⬆⬆⬆⬆⬆question............​

Answer 1

Answer:

3. a carbon dioxide

b.sodium bicarbonate

c. coating with oil ___galvanisation

d.physical

e.chemical

4.chemical change because new substance is formed by reaction of baking soda and lemon juice which is having new properties aside from baking soda and lemon juice

5. when candle burns two changes occur:-

a. melting of wax -physical change

b. evaporation of wax from wick- chemical

change

6.new semi solid substance is results of fermentation by loctobasillus

7.burning of wood -ash is results. Hence,new substance

cutting of wood - physical properties remain same

9.it prevents contact between air with iron .Hence,no reaction occur between iron and air and there is no rusting.

10.because in coastal areas there is more moisture in the air as compared to deserts

Answer 2

Answer:

Oh bola na 7 me nii hu 7 me ni8 hu