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

The type of reaction that occur  when  (CH4)  burns in oxygen to produce carbon dioxide and water  is combustion reaction

   explanation

 Combustion reaction is type of chemical reaction in which  a compound  and oxidant react to produce  heat and  new product.

when a hydrocarbon for example methane    undergoes combustion it produces  carbon (iv) oxide, water and heat  according to reaction below.

CH4 + 2O2  →  CO2 + 2H2O  + heat

linda: 3 ; laura: 15

step-by-step explanation:

note that linda + laura's age is 18, and that linda is 12 years younger than her sister.

let "linda" = x , "laura" = y:

x + y = 18

x = y - 12

first, plug in y - 12 for x in the first equation:

(y - 12) + y = 18

simplify.

2y - 12 = 18

isolate the variable (y). note the equal sign, what you do to one side, you do to the other. do the opposite of pemdas. first add, then divide.

2y - 12 (+12) = 18 (+12)

2y = 18 + 12

2y = 30

(2y)/2 = (30)/2

y = 30/2

y = 15

next, plug in 15 for y in the second equation (the other equation would work too).

x = y - 12

x = (15) - 12

x = 3

linda's age is 3, laura's age is 15.

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