5. HOW do you think ideas like the periodic table get widely known and accepted in the scientific
community? Do you believe it is easier or hard to happen now? (SYNTHESIS-making conclusion CCRS

a. a primary source combines several different accounts of an event. b. a primary source generally benefits from having been written after an event.

explanation:

lithosphere and asthenosphere

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.