What do these two changes have in common? Select all that apply.

Question

rust forming on a metal gate
snails growing shells
(1 point)
Responses

Both are only physical changes
Both are only physical changes

Both are chemical changes
Both are chemical changes

Both conserve mass
Both conserve mass

Both are changes in state.

Answer 1

The two changes have the following in common:

• Both conserve mass

While the formation of rust is a chemical change and involves the transformation of iron into iron oxide, the growth of snail shells is also a biological process that involves the deposition of calcium carbonate. Both processes involve the conservation of mass, as the materials involved in each change are rearranged rather than created or destroyed.

The other options do not apply:

• Rust formation is a chemical change, while snails growing shells is more of a biological process, so they are not both only physical or chemical changes.
• They do not represent changes in state (like solid to liquid) but rather transformations in material properties or structures.

Answer 2

whats the answer

Answer 3

The correct response is:

• Both conserve mass

This is the only option that applies to both changes. Rust formation is a chemical change, and snails growing shells involves biological processes, but in both cases, mass is conserved. The other options do not apply.