Question

a. 40 g
b. 88 g
c. 104 g
d. 256 g

1. which box contains only elements?

a. box a
b. box b
c. box c
d. box d

Explanation:

• An element is a pure substance consisting of only one type of atom.
• In Box C, we can see two types of diatomic elements (molecules made of the same type of atoms).
• Box A and B contain compounds (molecules made of different types of atoms). Box D contains a mixture of elements and compounds.

Answer:

C. Box C