Iron nails do not get rusted when kept in distilled water even for a long time. give reason

When the speed of the bottle is 2 m/s, the average maximum height of the beanbag is m.

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.

Estimate the molar mass of the gas that effuses at 1.6 times the effusion rate of carbon dioxide.