Ch4 and o2 react to form hcho and h2o with a catalyst. the reactants also react to form co2 and h2o under the same conditions. for a basis of 100 mol feed/s and equimolar feed of reactants: i) write the two balanced competing reactions in the reactor; ii). draw and label a flowchart and use a degree-of-freedom analysis based on extents of reaction to determine how many process variables must be specified to calculate the remaining variables; iii). derive expressions for the product stream component flow rates in terms of the extents of the two reactions; iv). calculate the molar composition of the reactor output stream and the selectivity of hcho relative to co2 if the fractional conversion of methane is 0.8 and the fractional yield of hcho is 0.75.

answer:

the answer is 6 valence electrons.

explanation:

valence is the # of electrons on the outer most shell of an atom.

oxygen has 6.

although, the valency of oxygen is 2, because it only needs to make 2 covalent bonds, or gain 2 electrons, to achieve the stable octet configuration of a noble gas.

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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.

air

in a tire you fill a tire with air

then a couple days later you check the air pressure in the tire

hope this mark me brainliest