Question

1. provide a brief description for each of the following terms in the boxes provided.

all matter
pure substances
mixtures
elements
compounds
homogeneous
heterogeneous

Explanation:

• All Matter: Anything with mass and volume, occupying space.
• Pure Substances: Matter with uniform, fixed composition and properties.
• Elements: Pure substances made of one type of atom (e.g., gold, oxygen).
• Compounds: Pure substances made of two+ elements chemically bonded (e.g., water, CO₂).
• Mixtures: Matter combining two+ substances physically (not chemically bonded).
• Homogeneous Mixtures: Uniform composition (e.g., saltwater, air).
• Heterogeneous Mixtures: Non-uniform composition (e.g., soil, salad).

Answer:

All Matter: Anything with mass and volume
Pure Substances: Uniform, fixed composition
Elements: One type of atom
Compounds: Two+ bonded elements
Mixtures: Physically combined substances
Homogeneous: Uniform composition
Heterogeneous: Non-uniform composition