How much heat is needed to raise 125 Grammys of iron from 5.0C to 33C ? The specific heat of iron is 0.450j/g•C

ok this might not be right but i think its 1,575??

Explanation:

(125)(28)(0.450)

i think you just multiply the grams, change in temp, then the cp by each other not completely sure tho

i'm pretty sure it is letter c.) car

answer:

the answer is 6 valence electrons.

explanation:

valence is the # of electrons on the outer most shell of an atom.

oxygen has 6.

although, the valency of oxygen is 2, because it only needs to make 2 covalent bonds, or gain 2 electrons, to achieve the stable octet configuration of a noble gas.

that's it!

if you need further assistance, let me know: )

~ trueboss72