A cylindrical balloon of 21 cm diameter is to be filled up with H2 at NTP from a cylinder containing the gas at 20 atm and 27°C. The cylinder can hold 2.82 lit o water at NTP. Calculate the number of balloons that can be filled up state two conditions under which behavior of real gas approaches that of an ideal gas. [3+2​

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

Compare and contrast physical changes with chemical changes.

In a copper wire, a temperature increase is the result of which of the following