What is the equilibrium constant for the reaction SO2(g) + NO2(9) = SO3(g) + NO(g)?

А. Keq: [S03)(S02]
[NO][NO2]

B. Keq: [SO2)(NO2]
[SO3)(NO]

C. Keq: [SO3)3(NO]
[SO2)2(NO2)2

D. Keq: [SO3)(NO]
[SO2]NO2]

D. Keq: [SO3][NO] /[SO2]NO2]

Explanation:

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In this case, according to the process to set up equilibrium expressions for chemical reactions at equilibrium, we realize we need to write up the concentration of products on top and that of reactants on bottom; thus, for there chemical reaction herein specified, we obtain:

Thereby, the answer is D. Keq: [SO3][NO] /[SO2]NO2].

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answer is: c. the experiment shows that the red substance experienced a chemical change.

this is chemical change (chemical reaction), because two new substances are formed (metalig liquid and gas), the atoms are rearranged and the reaction is followed by an energy change.

this is example of chemical decomposition.

chemical decomposition (analysis) is the separation of a single chemical compound into its two or more elemental parts or to simpler compounds.  

chemical decomposition is opposite of chemical synthesis.

explanation:

let the different atoms be x and y. each with four protons and same mass will be represented as follows.

mass number is number of protons + number of neutrons.

            and  

since, it is given that one has a negative charge while the other is neutral. therefore, there will be increase in number of protons and the atom will be represented as follows.

according to periodic table, mass number of beryllium is 9 and it has atomic number 4 so, the atoms will be and .  

the protons and neutrons will be located inside the nucleus whereas the electrons will be revolving around the nucleus.