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just olya [345]
3 years ago
5

I need help please.

Chemistry
1 answer:
dezoksy [38]3 years ago
4 0
I dont know think its 3.3.4448
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What is a single layer of graphite called<br> Asking for GCSE Chemistry
lara31 [8.8K]

Answer:

GRAPHENE is a single layer of graphite

Explanation:

each carbon atom bonded to 3 other carbon atoms forming a hexagonal lattice

8 0
2 years ago
3. Sarah, who has a mass of 55 kg, is riding in a car at 20 m/s. She sees a cat crossing the street and slams on the brakes! Her
kirza4 [7]

F = (mass)(acceleration) = ma

m = 55 kg

Vi = 20 m/s

t = 0.5 s

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a=(Vf-Vi)/t

a=(0-20)/5

a = 40 m/s^2 (decelerating)

F = ma = (55 kg)(40 m/s^2)

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7 0
3 years ago
Express the answer in scientific notation and with the correct number of significant figures: (6.32 x 10-4) ÷ 12.64
nignag [31]
Your answer will be B)5.00*10^-5. Hope it helps.
6 0
4 years ago
Are the activities exothermic or endothermic?​
Alexandra [31]

Answer:

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Explanation:

And heat is evolved in exothermic reaction and heat is absorbed in endo thermic reaction

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3 years ago
I WILL GIVE BRAINLIEST
creativ13 [48]

Answer:

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