What scientist use the scientific method to determine if cold was a substance?

What mass of carbon dioxide is produced from the complete combustion of 4.50×10−3 g of methane?

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

Which of the following would be an accurate picture of the earth during the summer time of the northern hemisphere?