Chemistry, asked by reenaahlawat1981, 1 year ago

Write weather the change is chemical or physical
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Answered by Pkparmeet
1
a) it is chemical change since a new substance is formed.
b) it is a physical change.
c) it is a chemical change.
d) it is physical change.
e) it is physical change as when bulb is switched on the filament wire gets heated and glows but it returns to its original state as we switch off the light.
f) it is chemical change.
g) it is chemical change.
h) it is a chemical change.
i) it is a chemical change.
j) it is a physical change.
k) it is a physical change .
Hope it helps.
please mark my answer as brainlilist. thanks.

Pkparmeet: it is called physical weathering
Pkparmeet: rock breaks but no new substance is formed
Pkparmeet: it remains a rock only
Pkparmeet: Hope you understand
reenaahlawat1981: As in a rock cycle first sedimentary rock then metamorphic rocks and many more
reenaahlawat1981: They change to other type of rock
reenaahlawat1981: Ok thank u
reenaahlawat1981: I got the point
Pkparmeet: it is both physical change as well as chemical change
reenaahlawat1981: Ok
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