Question

which kind of matter is each sample? sample 1 sample 2 sample 3 element element element compound compound compound mixture mixture mixture

Explanation:

Step1: Analyze Sample 1

Sample 1 has only one - type of atom, so it is an element.

Step2: Analyze Sample 2

Sample 2 has two different types of substances (single atoms and molecules of the same element), so it is a mixture.

Step3: Analyze Sample 3

Sample 3 has molecules made up of different types of atoms, so it is a compound.

Answer:

Sample 1: Element
Sample 2: Mixture
Sample 3: Compound