Question

lets review...
circle the number of all the heterogeneous mixtures

1. rubbing alcohol is heterogeneous or homogeneous
2. beach sand is heterogeneous or homogeneous
3. pure air is heterogeneous or homogeneous
4. chunky spaghetti sauce is heterogeneous or homogeneous
5. baking soda is heterogeneous or homogeneous
6. cracked open raw egg is heterogeneous or homogeneous
7. gold is heterogeneous or homogeneous
8. vegetable soup is heterogeneous or homogeneous
9. gatorade is heterogeneous or homogeneous
10. table salt is heterogeneous or homogeneous

Explanation:

• Rubbing alcohol: Homogeneous (uniform composition).
• Beach sand: Heterogeneous (different components like sand grains, shells).
• Pure air: Homogeneous (uniform gas mixture).
• Chunky spaghetti sauce: Heterogeneous (visible chunks).
• Baking soda: Homogeneous (pure compound).
• Cracked open raw egg: Heterogeneous (yolk and egg white).
• Gold: Homogeneous (pure metal).
• Vegetable soup: Heterogeneous (vegetable pieces).
• Gatorade: Homogeneous (uniform liquid).
• Table salt: Homogeneous (pure compound).

Count the number of heterogeneous mixtures: Beach sand (2), Chunky spaghetti sauce (4), Cracked open raw egg (6), Vegetable soup (8) → 4 in total.

Answer:

4