How many mole ratio can be written for following reaction CH4 + 2 02 --> CO2 + 2 H2O

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6 invertible mole ratios (12 in total).

Explanation:

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In this case, according to the balanced chemical reaction, it is possible to realize that methane would have 1:2, 1:1 and 1:2 mole ratios with oxygen, carbon dioxide and water respectively, oxygen would have 2:1 and 2:2 mole ratios with carbon dioxide and water respectively and finally, there is a 1:2 mole ratio between carbon dioxide and water, therefore there are 6 mole ratios that we can use for any stoichiometric calculations.

By the way, this mole ratios can be inverted depending on the given amount and the required one.

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the temperature of the gas, in k, not celsius.

a 20-cm-long, cylindrical graphite (pure carbon) rod is inserted into an oxidizing atmosphere at 1145 k and 1.013 x 105 pa pressure. the oxidizing process is limited by the diffu- sion of oxygen counterflow to the carbon monoxide that is formed on the cylindrical surface.