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zhannawk [14.2K]
2 years ago
9

What is Aurora Borealis?​

Chemistry
2 answers:
Leona [35]2 years ago
8 0

Auroras present in polar regions.

seropon [69]2 years ago
4 0

Answer:

the Northern Lights

Explanation:

The northern lights, one of several astronomical phenomena called polar lights (aurora polaris), are shafts or curtains of colored light visible on occasion in the night sky. Aurora borealis

hope this helps

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Al (s) + CuSO4 (aq) → Cu (s) + Al2(SO4)3 (aq)
azamat

Answer:

Explanation:

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Define diffusion. Is it faster in summer or winter season?
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hope this helps!
6 0
3 years ago
Read 2 more answers
Calculate the mass of O2 produced if 3.450 g potassium chlorate is completely decomposed by heating in presence of a catalyst (m
sergiy2304 [10]

The reaction is:

2 KClO3(s) → 3 O2(g) + 2 KCl(s) <span>

<span>A catalyst simply lowers the activation energy so MnO2 is not part of the overall reaction.

By stoichiometry: 

<span>3.45 g KClO3 x 1 mol/ 122.55g KClO3 x 3 mol O2/ 2 mol KClO3 x 31.99g/ 1 mol O2 = 331.096/ 245.1 = 1.35 grams O2 produced 

Answer:
1.35 grams O2</span></span></span>
3 0
3 years ago
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