Combustion synthesis decomposition single replacement double replacement

1 answer:

4 0

Combustion=heat and light
decomposition=taking something away
single means one element changes
and double means two elements change l.

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Answer:

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Blank c2h4 + blank o2 → blank co2 + blank h2o how many moles of o2 are in the chemical equation when balanced using the lowest w

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The reaction is
C₂H₄ + O₂ → CO₂ + H₂O

To balance the equation, both side have same number of elements. Here,

In left hand side has in right hand side has

4 H atoms 2 H atoms

2 C atoms 1 C atom

2 O atoms 3 O atoms

First, we have to balance number of C atoms and number of H atoms in both side.
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C₂H₄ + 3O₂ → 2CO₂ + 2H₂O

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1. In the investigation of an unknown alcohol, there was a positive Jones test and a negative Lucas test. What deductions may be

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Answer:

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2. No reaction (See the attached drawing)

3. (see the attached drawing)

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