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Oksanka [162]
2 years ago
10

Which type of reaction is occurring during a fireworks show? How do you know?

Chemistry
1 answer:
Natasha2012 [34]2 years ago
8 0

Answer:

It is an exothermic reaction. Heat must be added to light the fuses of the fireworks

Explanation:

I learned this in high school chemistry.

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How many significant figures are in this number? : 2.7 x 10^-3
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Answer:

2 significant figures i.e. 2 and 7.

Explanation:

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krok68 [10]
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Al(NO₃)₃ is aluminium nitrate.
AlCl₃ is aluminium chloride.

3 0
3 years ago
What is the molecular shape of HCN?<br> bent<br> linear<br> angular<br> trigonal pyramidal
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HCN is a linear molecule.
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3 years ago
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