1) 2Fe2O3 + 3C - 4Fe + 3C02 How many grams of carbon dioxide (CO) are produced from 85.0 grams of carbon (C)

h let me think

i believe you are right for all except the 3rd ( look at sqdancefan his answer is much better)

conduction is the transfer of thermal energy (heat in transfer) due to collisions between the molecules in the object. collisions between adjacent atoms and molecules transfer kinetic energy from the warmer to the cooler object. the objects must be in physical contact.

geosphere and hydrosphere.

this is because the geosphere has to do with geological events, while the hydrosphere controls all water on earth.