Question

9 in what way are atoms similar to building blocks? a they can only be separated physically b they combine through chemical changes c they come in different shapes and textures d they combine to form different structures

Explanation:

• Option A: Atoms can be separated in chemical reactions, not only physically, so A is incorrect.
• Option B: Building blocks combine physically, while atoms combine via chemical bonds (chemical changes for compounds, but the analogy here is about forming structures). However, the key analogy is about forming structures, not the type of combination process. But more importantly, the main similarity is forming structures.
• Option C: Atoms don't have "shapes and textures" in the way building blocks (physical objects) do. Atoms have electron cloud distributions etc., but this is not a good analogy to building blocks' shapes/textures.
• Option D: Building blocks combine (like stacking, attaching) to form different structures (e.g., a house, a tower). Atoms combine (via chemical bonds) to form different structures (molecules, compounds, materials). This is the core similarity.

Answer:

D. They combine to form different structures