Question

practice problems: 1. determine if the following diagrams represent an element, compound or mixture. determine if the following diagrams represent a solid, liquid or gas. element, compound or mixture solid, liquid, or gas

Explanation:

Step1: Recall definitions

An element has only one - type of atom, a compound has different types of atoms chemically bonded, and a mixture has different substances not chemically bonded. Solids have closely - packed particles, liquids have more mobile particles, and gases have widely - spaced particles.

Step2: Analyze first diagram

The particles are widely spaced and there are identical molecules (two - atom units). It is a gas compound.

Step3: Analyze second diagram

There are two types of non - bonded atoms. It is a gas mixture.

Step4: Analyze third diagram

The particles are closely packed in an ordered way and there are identical molecules. It is a solid compound.

Step5: Analyze fourth diagram

There are identical closely - packed atoms. It is a solid element.

Step6: Analyze fifth diagram

The particles are widely spaced and there are identical diatomic molecules. It is a gas element.

Answer:

1. Gas, compound
2. Gas, mixture
3. Solid, compound
4. Solid, element
5. Gas, element