an important thing to ask yourself when identifying chemical and physical changes is was anything new created if yes, then it’s usually a chemical change. If no, then it is usually a physical change. Burning wood is a physical change. Is that true or false and a physical change, the makeup of matter is changed is that true or false combining Hartridge hydrogen and oxygen to make water is a physical change true or false changing the size and shapes of pieces of wood would be a chemical change, true or false sand being washed out to see from the beach is a chemical change True or false breaking up concrete is a physical change true or false evaporation is a physical change true or false acid. Rain damaging a marble statue is a physical change true or false when ice cream melts a chemical change occurs true or false.

Answer 1

Let's evaluate each statement you provided:

1. Burning wood is a physical change. - False. Burning wood is a chemical change because new substances (ash, smoke, gases) are created as a result of combustion.

2. In a physical change, the makeup of matter is changed. - False. In a physical change, the makeup of matter does not change. The substances retain their chemical properties, but their appearance or state may change.

3. Combining hydrogen and oxygen to make water is a physical change. - False. This is a chemical change because new substances (water) are formed from the chemical reaction between hydrogen and oxygen.

4. Changing the size and shapes of pieces of wood would be a chemical change. - False. This is a physical change. The wood remains wood, just altered in its size or shape.

5. Sand being washed out to sea from the beach is a chemical change. - False. This is a physical change because the sand remains chemically unchanged regardless of its location.

6. Breaking up concrete is a physical change. - True. This is a physical change because the chemical structure of the concrete does not change when it is broken into smaller pieces.

7. Evaporation is a physical change. - True. Evaporation is a physical change because it involves a change in state (from liquid to gas) without altering the chemical composition of the water.

8. Acid rain damaging a marble statue is a physical change. - False. This is generally a chemical change because the acid reacts with the calcium carbonate in the marble, leading to changes in its chemical composition and structure.

9. When ice cream melts, a chemical change occurs. - False. Melting ice cream is a physical change because the ice cream changes from solid to liquid state without changing its chemical composition.

In summary:

1. False
2. False
3. False
4. False
5. False
6. True
7. True
8. False
9. False