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marishachu [46]
3 years ago
11

What happens that causes many leaves to change color in the autumn

Chemistry
2 answers:
Alex_Xolod [135]3 years ago
7 0
The pigment that turns leaves green is chlorophyll. when chlorophyll leaves the leaves the leaf will turn different colors<span />
motikmotik3 years ago
4 0
Hi there, Aishapatel!
Leaves have a substance called Chlorophyll in them, which makes them green. As summer turns to winter, it gets cold and the leaves die. As the leaves die, the chlorophyll goes away, the leaf begins to change color.
I hope I helped!
(P.S. Brainliest Answer please? I got to Virtuoso but Brainly just removed it and I don't know why, but now I have to start over. :()
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After an electric sign is turned on, the temperature of its glass goes from 23.5°C to 65.5°C. The sign’s glass has a mass of 905
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<h3>Further explanation</h3>

Given

The temperature of glass :  23.5 °C to 65.5 °C

mass = 905 g

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Required

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Solution

Heat absorbed by sign's glass can be formulated :

\tt Q=m.c.\Delta T

ΔT=65.5 - 23.5 = 42

\tt Q=905\times 0.67\times 42\\\\Q=\boxed{\bold{25466.7~J}}

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