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frutty [35]
3 years ago
8

What are the five indicators of a chemical change

Chemistry
2 answers:
UkoKoshka [18]3 years ago
6 0
Change in color
change in temp.
change in Odor
formation of bubbles
formation of precipitation 



Charra [1.4K]3 years ago
5 0
Color changes
#1

gas produced
#2

temperature changes
#3

new substance formed
#4

odor released
#5
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iren [92.7K]

From the stoichiometry of the combustion reaction, we can see that 7.4 L of oxygen is consumed.

<h3>What is combustion?</h3>

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x = 0.33  moles

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= 7.4 L of oxygen

Learn more about stoichiometry: brainly.com/question/13110055

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3 years ago
Write a balanced chemical equation for the reaction that occurs when calcium metal undergoes a combination reaction with O2(g)?
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hope that helps 

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Identify the combustion reaction. c4h12 + 7o2 ⟶ 6h2o + 4co2 2h2 + o2 ⟶ 2h2o al2s3 ⟶ 2al + 3s cl2 + 2kbr ⟶ 2kcl + br2
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From the given equations, the combustion reaction is;
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Therefore this is the only reaction that follows the general equation for combustion.
3 0
3 years ago
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