1) H2O + CO2 ? C6H12O6 + O2
In the (unbalanced) photosynthesis reaction above, Fill in the Blank 01 kg of glucose are produced if 44 kg of carbon dioxide are consumed. Make sure to balance the equation first.
2) If 142 x 106 metric tons of SO2 are released per year by fossil fuel combustion, the mass of sulfur in this amount of SO2 is Fill in the Blank 01 x 107 metric tons.
7) It is estimated that the Earth's ruminants (cattle, sheep, etc.) produce 73 million metric tons of CH4 each year. In this amount of CH4 there would be Fill in the Blank 01 million metric tons of carbon. (Use two significant figures).