Conclusions:
1. was one area of the building warmer/cooler than the others? describe what you observed in
your data table.

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.

i'm pretty sure it is letter c.) car

answer:

technetium is the most reactive. this is followed by silver. the least reactive out of these three elements is strontium.