The periodic table of elements arranges all of the known chemical elements in an informative array. Elements are arranged from left to right and top to bottom in order of increasing atomic number. Order generally coincides with increasing atomic mass. The rows are called periods.
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The chemical reaction is written as:
<span> 2H2O(g) = 2H2(g) + O2(g)
The mass action expression is the same as the equilibrium constant expression of the reaction. The equilibrium constant expression of the reaction is the ratio of the concentration of the products and the reactants where the concentrations are being raised to the power of their coefficients from the balanced chemical reaction. Therefore, the expression for the decomposition of H2O would be:
K = </span><span>[H2]^2 [O2] / [H2O]^2
In writing equilibrium expressions, it should be noted that substances that are pure fluids are not to be included in the expression as well as solid substances.</span>
Answer:
how many it is you should give only one question
First you'd plug in -12 for T then you'd multiply -12 by 9/5, which in decimal form is 1.80, to get -21.6. Afterwards you'd add 32 to -21.6 and you'd get 10.4. So the correct answer should be B.