6. Students are given two samples of material. The first sample contains 1 mole of iron (Fe), and the second sample contains 1 mole of lithium (Li). Which of the following
statements best describes how these samples compare to one another?
1. Sample 1 contain more aroma than 2.
2. Each sample contains the same number of atoms.
3. Both samples have the same mass when placed on the scale.
4. Samples 2 has a greater mass than sample 1.