__1__ was used as an indicator because it is colorless in __2__ solutions and pink in __3__ solutions.

ANSWER:
1.) phenolphthalein
2.) neutral and acidic
3.) basic

Which statement names the physical property of wood a. wood is softer than coal b. wood does not rust c. wood can rot d. wood can burn

Some liquids can be distilled, but only at temperatures that are so high that it is impractical, or so high the compound decomposes. explain why distillation such compounds at significantly less than atmospheric pressure (some degree of vacuum) would solve this problem.

How does kepler second law of planetary motion overthrow one of the basic beliefs of classical astronomy