How much energy is needed to melt 25.4 grams of i2?
hfus=61.7 j/g

type the correct answer to 3 digits. if the answer has an exponent, type the number, then ^, then the exponent.

(the picture might make the question more clearer.)

Ineed ! it’s science and it’s due tomorrow!

Which statement describes evidence of a chemical reaction? a) ice melting eliminate b) water boiling c) lighting a match d) grape juice freezing

If a molecule with a molecular formula of c13h18 is treated with an excess of h2 in the presence of finally divided pt metal under conditions required for maximum hydrogenation of the molecule to give a molecule with a formula c13h24, how many rings are in the molecule?