What do these two changes have in common? shaking up salad dressing beating an egg Select all that apply. Both are chemical changes. Both are changes of state. Both conserve mass. Both are only physica changes.

## Step 1<br />The problem asks us to identify the commonalities between shaking up salad dressing and beating an egg. We need to analyze each option in the context of these two activities.<br /><br />## Step 2<br />The first option is "Both are chemical changes." A chemical change involves a chemical reaction, with new substances produced as a result of the change. In the case of shaking up salad dressing or beating an egg, no new substances are formed. The ingredients are simply mixed, so these activities are not chemical changes.<br /><br />## Step 3<br />The second option is "Both are changes of state." A change of state refers to a change in the physical state of a substance, such as from solid to liquid or liquid to gas. Neither shaking up salad dressing nor beating an egg involves a change of state.<br /><br />## Step 4<br />The third option is "Both conserve mass." The law of conservation of mass states that mass is neither created nor destroyed in a closed system. In both shaking up salad dressing and beating an egg, the mass of the ingredients remains constant; no mass is added or removed.<br /><br />## Step 5<br />The fourth option is "Both are only physical changes." A physical change is a change in the form or physical properties of a substance, without any change in its chemical composition. Shaking up salad dressing and beating an egg are physical changes because they involve mixing the ingredients without altering their chemical structure.