How many grams of methane should be burned in an excess of oxygen at stp to obtain 5.6 l of carbon dioxide?
2.0 g
4.0 g
16.0 g
32.0 g

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

Gymnast always perform on padded mats. how does the mats protect the gymnast

8.98 dm3 of hydrogen gas is collected at 38.8 °c. find the volume the gas will occupy at -39.9 °c if the pressure remains constant.