The International System of Units (SI) is a standardized system of measurement used to express fundamental quantities in metric units. Which of the following metric units are used to measure the fundamental quantities of length, mass, and time, respectively, in the Sl system?
foot, pound, second
liter, gram, second
O meter, kilogram, second
meter, Ounce, second

2h2o2--> 2h2o + o2

this reaction is of the spontaneous decomposition of hydrogen peroxide down into water and oxygen.

add 2 molecules of hydrogen peroxide and 2 molecules of water. since oxygen is naturally diatomic, the total number of atoms of each element is now the same on both sides of the equation so it is balanced.

this may not be entirely correct but let me know.

the answer is a! (2.9 x 10^-18 j) hope i could someone. : )