3. how did ethanol use affect the shortage of corn available to consumers during and
after the drought of 2012? do you think that commodities in one sector should be used
in another economic sector? how might the concept of needs and wants affect your
analysis of this issue?

Plz choose one of the compounds from the table and explain how you know the numbers of atoms in your formula. is it possible for two different compounds to be made from the exact same two elements? why or why not? with a limited number of elements (less than 120 are known), does this mean we also have a small number of compounds or do we have a large number of compounds in this world?

When 225mg of anthracene, c14h10(s), was burned in a bomb calorimeter the temperature rose by 1.75k. calculate the calorimeter constant. by how much will the temperature rise when 125mg of phenol, c6h5oh(s), is burned in the calorimeter under the same conditions? (δch< (c14h10,s)=–7061 kj mol−1.)

When a spring is compressed, the energy changes from kinetic to potential. which best describes what is causing this change?