Question

8 what evidence supports the idea that seawater is a homogeneous mixture? a its substances can be easily separated using a filter b it has the same properties as freshwater c it tastes just as salty throughout the entire mixture d filtration can separate the salt from the rest of the mixture

Explanation:

• Option A: Seawater has dissolved salts, and filtration can't separate dissolved substances, so A is wrong.
• Option B: Seawater has salts (like NaCl) and freshwater doesn't, so their properties differ, B is wrong.
• Option C: A homogeneous mixture has uniform composition. If seawater tastes equally salty throughout, its composition is uniform, supporting it's homogeneous.
• Option D: Filtration can't separate dissolved salt from water (needs evaporation/distillation), so D is wrong.

Answer:

C. It tastes just as salty throughout the entire mixture