Question

give one word answer​

Answer 1

Answer:

1. Carbon dioxide gas (CO2)
2. Ferrous Sulphide (FeS)
3. Sublimation
4. Chemical Change

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Answer 2

1=Co2(carbon dioxide)
2=FeS(iron sulphide)
3=sublimation
4=chemical change

EXPLANATION

1=you can try a home experiment by mixing baking soda and few drops of lemon

2=if you mix (any element + sulphur/oxide)=element oxide /sulphate
For example :carbon + oxygen = carbon oxide

3=it is a process in which solid changes to gas immediately
Extra information:opposite of sublimation is deposition

4=only in chemical change new substances are formed
For example: burning of paper = ash

HOPE IT HELPS
BTS BORAHAE