3 years ago

What are the requirements for combustion of a candle?

1 answer:

7 0

For a candle to burn, it requires a spark, which provides the activation energy for the oxidation reaction of the hydrocarbon making the candle.
It also requires oxygen to facilitate the oxidation of the hydrocarbon.
Therefore the two main requirements of combustion of a candle are oxygen and a spark (or an initial flame)

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3 years ago

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3 years ago

What is the potential energy of a 2-kg vase sitting on a table with a height of 1<br> meter?

lisov135 [29]

"20 J" is the "Potential Energy" of "vase" on the table.

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The body possess some energy according to the position of the object that is the when an object is placed at a height it stores some energy it is called "Potential Energy".

Formula used to calculate the "Potential Energy" is $m\times g \times h$

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3 years ago

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2.33 is the right answer.

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