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Radda [10]
3 years ago
13

Which substance can be broken down by chemical means?

Chemistry
1 answer:
Nonamiya [84]3 years ago
4 0
Answer is (4). elements/ atoms can't be broken down by chemical means but molecules can.

1, 2 and 3 are elements but 4 is a molecule because it is made of more than one element; in this case, it is made of CARBON and OXYGEN.
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How many liters of 
Kruka [31]
The balanced equation for the above reaction is as follows
C₆H₁₂O₆(s) + 6O₂(g) --> 6H₂O(g) + 6CO₂<span>(g)
the limiting reactant in the equation is glucose as the whole amount of glucose is used up in the reaction.  
the amount of </span>C₆H₁₂O₆ used up - 13.2 g
the number of moles reacted - 13.2 g/ 180 g/mol  = 0.073 mol
stoichiometry of glucose to CO₂ - 1:6
then number of CO₂ moles are - 0.073 mol x 6 = 0.44 mol
As mentioned this reaction takes place at standard temperature and pressure conditions, 
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Therefore 0.44 mol of CO₂ occupies 22.4 L/mol  x 0.44 mol = 9.8 rounded off - 10.0 L
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4 years ago
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natita [175]

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8 0
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sp2606 [1]

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4 0
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Answer:

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