In weather forecasting, barometric pressure is expressed in…

In weather forecasting, barometric pressure is expressed in inches of mercury (in. Hg) where there are exactly 25.4 mm Hg in every 1 in. Hg. What is the barometric pressure in millimeters of mercury if the barometric pressure is reported as 30.11 in Hg? Express your answer to one decimal place.

Classify each of these reactions with respect to the followi…

Classify each of these reactions with respect to the following categories: combination reaction, decomposition reaction, combustion reaction, and single-displacement reaction.   Fe2(CO3)2 –> Fe2O3 + 2CO2          [ann1]   2C6H11OH + 17O2 –> 12CO2 + 12H2O      [ann2]   P4O10 + 6H2O –> H3PO4      [ann3]   2C + MnO2 –> Mn + 2CO         [ann4]