Answer:
Place a glowing splint in the test tube, and if it reignites, it could be oxygen. Place a burning splint into a test tube, and if it goes out, it could be carbon dioxide. Or, place carbon dioxide gas in limewater, and if it turns milky and gets chunks, it is carbon dioxide.
Are there any answer choices, I can’t see very clearly
The answer is c because they are categorized as they come in order
Answer:
the Frequency remains constant