3 years ago

Which equation represents a combustion reaction?

Chemistry

2 answers:

Anarel [89]3 years ago

5 0

Answer:

2SO2 + O2 => 2SO3

Explanation:

Combustion reaction involves heating of a compound/element/substance in presences of oxygen.

Natali [406]3 years ago

3 0

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What would be the pH of an H2SO4 solution if the [H+] = 4.58 x 10-5 moles/liter?

Ghella [55]

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Explanation:

pH or pOH is the measure of acidity or alkalinity of a solution.

pH is calculated by taking negative logarithm of hydrogen ion concentration.

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Putting in the values:

$pH=-\log[4.58\times 10^{-5}]$

$pH=4.34$

Thus pH of an $H_2SO_4$ solution if the $[H^+]$ is $4.58\times 10^{-5}]$ is 4.34

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