What do these two changes have in common? mixing glue and laundry powder to create putty an antacid tablet reacting with water Select all that apply. Both are only physical changes. Both are chemical changes. Both are caused by heating. Both are caused by cooling.

## Step 1<br />The problem presents two scenarios: mixing glue and laundry powder to create putty, and an antacid tablet reacting with water. We need to determine what these two changes have in common.<br /><br />## Step 2<br />The first scenario involves mixing glue and laundry powder to create putty. This is a physical change because the original substances (glue and laundry powder) are not chemically altered. They simply combine to form a new substance (putty), but their individual properties remain unchanged.<br /><br />## Step 3<br />The second scenario involves an antacid tablet reacting with water. This is a chemical change because the original substances (the antacid tablet and water) are chemically altered to form a new substance (the products of the reaction).<br /><br />## Step 4<br />By comparing the two scenarios, we can see that both involve a change in the state of the original substances. In the first scenario, the original substances are combined to form a new substance, while in the second scenario, the original substances are chemically altered to form a new substance.<br /><br />## Step 5<br />However, the changes are not caused by heating or cooling. The changes occur due to the combination of the original substances or the chemical reaction between them, not because of temperature changes.