Methane (ch4) burns in oxygen to produce carbon dioxide and water. which reaction is occurring here?

Who is better, messi or cristiano, i need this for a chemistry class. asap

What is the formula for the compound dinitrogen pentoxide? a. n4o5 b. n5o4 c. n4o6 d. n5o2 e. n2o5

You open a can of soda at room temperature and hear a hiss. which of the following factors has changed inside the container? a.) atmospheric pressure b.) temperature of gas c.) type of gas d.) amount of gas