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Directions: Read the question carefully, and choose the best answer.
1. Which of the following is a chemical property?
2. Which of the following is a physical property?
3. The water glider is an insect that can walk on water. What property of water facilitates this ability?
4. Which of the following mixtures is heterogeneous?
5. The air in the atmosphere is a solution composed of 78.09% nitrogen (N), 20.95% oxygen (O), 0.93% argon (Ar), and 0.04% carbon dioxide (CO2) by volume. Which of these gases is the solvent?