Chemistry · Oct / Nov 2025 · Paper 42 · Question 1
0620
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The question as text
The three states of matter are solid, liquid and gas.
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1(a)[3]
particle
particle separation
particle motion
arrangement
solid
uniform
vibrate
liquid
touching
random
random
gas
apart
1(b)[3]
M1 melting
M2 condensing / condensation
M3 dissolving
1(c)(i)[1]
motion / movement of particles
1(c)(ii)[1]
relative molecular mass
1(d)[2]
M1 photochemical smog
M2 respiratory problems
1(e)(i)[1]
carbon monoxide
1(e)(ii)[2]
nitrogen
carbon dioxide
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