1) you are asked to make 10 miles of iron (fe) from iron oxide (fe2o3) and excess carbon monoxide (co). fe2o3(s) + 3co(g)—> 2fe(l) + 3o2(g). how many moles of iron oxide must you use.

a) 3 moles
b) 2 moles
c) 10 moles
d) 5 moles

2) 2c4h10 + 13o2–> 8co2 + 10h2o. if i want to produce 50g of h2o using the above combustion reaction, how many mol of c4h10 should i use?

a) 0.55 mol c4h10
b) 10 mol c4h10
c) 2.77 mol c4h10
d) 3.79 mol c4h10

Fugu, also known as puffer fish, is a sushi delicacy that can also be lethal. puffer fish contain a powerful toxin that can kill an adult a few hours after ingestion. sushi chefs who prepare fugu must be specially trained because any contamination of the toxin-free areas of the fish can be deadly. recently this toxin has been put to good use, as scientists have discovered that a purified form of it can treat severe pain in cancer patients. this recent scientific discovery would fall under which area of chemistry? applied biochemistry pure organic chemistry pure physical chemistry applied inorganic chemistry

One does not belong why? ice, gold ,wood ,diamond and table salt

Freezing and boiling are endothermic processes. this means that these processes absorb energy from their surroundings in order to occur. use this information and the data you collected in the phase change gizmo to describe what happens to the temperature of water when you boil it, then explain why this result occurs.