2. A chemist mixes lead (II) nitrate and potassium iodide solutions (both of which are clear
liquids). A yellow precipitate appears in the final solution. The remaining liquid is an ionic
solution. Solid precipitates containing lead are always yellow. (2 points)

Which real-world scenarios below represent physical and chemical changes? -running a car -exploding fireworks -mixing water and powdered drink mix -combining oil and vinegar to make salad dressing -taking aspirin for a headache -diluting bleach with water-digesting dinner-spreading peanut butter on bread

What is the empirical formula for c4h8o2

Which of these is a physical property