30 short question of chemistry matter in our surroundings class 9 with answers
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1. what is matter?
anything that occupy space or has mass is called matter
2 state the characterstics of matter demonstrated by diffusion
i) matter is made up of particles
ii) particles are constantly moving
3 can solid flow?
no, only fluids can only flow
4 what will happen when gasses will cool ?
gas liquefies
5 what will happen when ammonium cloride is heated?
it vapourises
6 what is condesation
conversion of state frm gas to liquid by lowering the temprature
7 can air be compressed?
yes , because as the inter molucular space of air particle is the most
8 conversion of vapours into solids iss ccalled ?
sublimation
9 how many elements are well known to us ?
110
10 humidity of air tells us the?
amount of moisture in the air
HARSHIT 47 PLZ DO NOT ASK ANY RUBISH QUESTION IN FUTURE
anything that occupy space or has mass is called matter
2 state the characterstics of matter demonstrated by diffusion
i) matter is made up of particles
ii) particles are constantly moving
3 can solid flow?
no, only fluids can only flow
4 what will happen when gasses will cool ?
gas liquefies
5 what will happen when ammonium cloride is heated?
it vapourises
6 what is condesation
conversion of state frm gas to liquid by lowering the temprature
7 can air be compressed?
yes , because as the inter molucular space of air particle is the most
8 conversion of vapours into solids iss ccalled ?
sublimation
9 how many elements are well known to us ?
110
10 humidity of air tells us the?
amount of moisture in the air
HARSHIT 47 PLZ DO NOT ASK ANY RUBISH QUESTION IN FUTURE
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3
Answer:
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What is matter
Characteristics
Panchatava
Diffusion
Give reason
Byee..
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