The use of evaporation and condensation to separate parts of a mixture is

Temperature and kinetic energy are proportional. a) adirectly b) directly c) indirectly

Astudent made the lewis dot diagram of a compound shown. what is the error in the lewis dot diagram? a)an o atom should transfer all of its six electrons to mg because the formula is mgo b) both electrons of mg should be transferred to one o adam because the formula is mgo c) the electrons should be transferred from each o add him to capital mg because mg has fewer electrons d) the number of dots around mg should be four because it has to transfer two electrons to each o

How many moles of air are there in a human lung with a volume of 2.4 l at stp? explain your answer