Convert each of the following numbers to a number having 4 s…

Convert each of the following numbers to a number having 4 significant figures.   4.30398                   [jim1]   4.44802 x 10-19      [jim2]   99.9975                   [jim3]   874.992                   [jim4]

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              [dog1]   2C6H11OH + 17O2–> 12CO2 + 12H2O        [dog2]   P4O10 + 6H2O–> H3PO4            [dog3]   2C + MnO2 –> Mn + 2CO            [dog4]