experiments were done on a certain pure substance x to determine some of its properties. theres a description of each experiment in the table below. in each case, decide whether the property measured was a chemical or physical property of x, if you can. if you dont have enough information to decide, choose cant decide in the third column.
| property | experiment | physical or chemical? |
| --- | --- | --- |
| o | a sample of solid x is carefully weighed and put inside a vented flask. the flask is heated until oxygen gas starts being produced. after no more oxygen gas is produced, the contents of the flask are removed and weighed, and from the decrease in weight the value of o may be calculated. | ∘ physical ∘ chemical ∘ (cant decide) |
| e | a thin sample of x is put between metal plates. a radio - frequency electric current is applied to the plates and passes through the sample. from the measured voltage across the plates the value of e may be calculated. | ∘ physical ∘ chemical |

Question

Accepted Answer

### For the first experiment (O):
# Brief Explanations:
A chemical property is related to a substance's ability to undergo a chemical change (react to form new substances). Here, heating solid X produces oxygen gas, meaning X undergoes a chemical reaction (decomposition or reaction to release O₂), so this is a chemical property.
# Answer:
chemical

### For the second experiment (E):
# Brief Explanations:
A physical property can be observed or measured without changing the substance's chemical identity. Measuring electrical current/voltage through X (to find properties like conductivity) doesn't involve a chemical reaction. Conductivity is a physical property, so this is a physical property.
# Answer:
physical

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Question

Explanation:

For the first experiment (O):

Answer:

For the second experiment (E):