Compounds are created when atoms of different elements . 1.form chemical bonds
2.have different chemical properties
3.form physical bonds
4.have similar chemical properties

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

Which scientists contributed to the determination of how cfcs in clouds in the upper atmosphere could destroy ozone molecules

Which of the following describes qualitative data? a) recording the temperature of a solid as it is warmed. b) noting the color of a solution as it is heated. c) measuring the volume of an object by water displacement. d) taking the mass of an object using a balance.