Question
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.
Answers
GPT-4o mini
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
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