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

answer; ///(d) the correct answer is double or triple

a chemical change results in a new substance being formed; whereas a physical change will result in a different state of matter

explanation:

answer: option (a) is the correct answer.

explanation:

the measurement of hydrogen ions in a solution is known as ph.

if ph of a solution is less than 7 then the solution is acidic. if ph of a solution is greater than 7 then the solution is basic.

when the ph of a solution equals 7, then the solution is considered as neutral.

the ph of pure water is 7, therefore, it means that concentration of hydronium ions equals that of hydroxide ions.