Your friend is tutoring someone for Chemistry class while you are trying to read your newest Manga "Zom 100: Bucket List of the Dead." They are being loud and you overhear her explaining the picture above. You hear her say, "sections 2 and 4 are where no kinetic energy is being added because the temperature isn't rising." You quickly jump in to correct her. What do you tell the student she is tutoring about what is actually happing in sections 2 and 4 of the graph above?

it forms an anion that has a larger radius. anions have a negative charge and are larger than the original atom.

the formula mass of a molecule or a compound is the sum of the atomic weights of the atoms in its empirical formula

(that's what i know about formula mass)

a. the law of proportion states the combination of 2 atoms in a specific ratio to produce multiple compounds such as the given statement of question ‘1st compound contains 88.8 % cu ’ indicates 88.8 g of cu is present along with 11.2 g oxygen in 100 g of compound whereas the statement ‘2st compound contains 79.9 % cu ’ indicates 79.9 g of cu is present along with 20.1 g oxygen in 100 g of compound

1st compound contains 88.8 g cu

for cu

m = 63 g /mol

atomic % = 88.8 /63 = 1.42

for o

m = 16 g /mol

atomic % = 11.2 /16 = 0.7

b. the emperical formula of 1st compound is

cu1.4o0.7

cu2o