Question

What do these two changes have in common?

1) They both involve adding a substance to a liquid
2) They both involve a change in temperature
3) They both result in a chemical reaction
4) They both cause a physical change

Answer 1

The two changes have similarities in terms of involving adding a substance to a liquid, a change in temperature, resulting in a chemical reaction, and causing a physical change.

Step-by-step explanation:

The two changes described have several similarities:

1. They both involve adding a substance to a liquid. For example, in the case of adding salt to water, the salt is the substance being added to the liquid.
2. They both involve a change in temperature. Adding a substance to a liquid can sometimes cause a temperature change due to the energy released or absorbed during the process.
3. They both can result in a chemical reaction. Adding a substance to a liquid can often cause the formation of new compounds or a change in the original compounds.
4. They both can cause a physical change. The addition of a substance to a liquid can lead to changes in the physical properties, such as color, density, or state of matter.

Answer 2

Both of these changes have physical and chemical components, and they are influenced by the addition of a substance to a liquid and changes in temperature.

Step-by-step explanation:

Both of these changes have physical and chemical components. Adding a substance to a liquid involves a physical change because the state of matter is altering, such as when a solid is dissolved in a liquid. Additionally, it can also involve a chemical change if the substance being added reacts with the liquid to form new compounds. The change in temperature also affects both of these processes. Increasing the temperature can facilitate the physical change, such as melting or boiling, and can also speed up chemical reactions. However, it's important to note that not all physical changes involve a change in temperature and not all chemical changes involve the addition of a substance to a liquid.