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3 years ago

Which of the following is an essential condition for a combustion reaction ?

Chemistry

2 answers:

Ugo [173]3 years ago

8 0

B is the answer to your question

WARRIOR [948]3 years ago

6 0

Answer: Option (b) is the correct answer.

Explanation:

A combustion reaction is defined as the reaction in which a substance chemically reacts in the presence of oxygen.

A combustion reaction is always exothermic in nature as heat is released. Also, carbon dioxide and water will be produced in a combustion reaction.

For example, $CH_{4} + 2O_{2} \rightarrow CO_{2} + 2H_{2}O$

Therefore, we can conclude that an essential condition for a combustion reaction is that oxygen is a reactant.

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2 years ago

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2 years ago

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How many molecules are in 7V205?

elixir [45]

Answer:

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Explanation: Hope this helps

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2 years ago

If the concentration of mercury in the water of a polluted lake is 0.250 μg (micrograms) per liter of water, what is the total m

aleksandr82 [10.1K]

Answer:

142.36 kg

Explanation:

volume of water in the lake = surface area x depth

= 18.5 x ( 1760 x 3 )² x 39 ft³

= 2.011 x 10¹⁰ ft³

= 2.011 x 10¹⁰ x 28.3168 liter .

= 56.945 x 10¹⁰ liter .

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8 0

2 years ago

What did you observe in the reaction of phosphoric acid with the freshly cleaned zinc when compared with a piece just taken out

mash [69]

Answer:

The classification is mentioned below for the particular topic.

Explanation:

Whether we position 2 different beakers in such a single beaker through one clean edge of zinc-containing H₃Po₄ and another one with unflushed zinc.

The zinc that was washed set to release hydrogen gas way quicker, unlike unventilated zinc.

⇒ $3Zn+2H_{3}Po_{4}\rightarrow Zn_{3}(Po_{4})_{2}+3H_{2}$

Since fresh zinc complicates the cycle since, as a comparison to polluted zinc, there was little contact with either the reaction.

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3 years ago