What volume of O2 is produced when 47.2 g of hydrogen peroxide (H2O2) decomposes to form water and oxygen at 160°C and 2.0 atm?
___H2O2 (aq) → ___H2O (l) + ___O2 (g)

c is the answer because when something is left after something evaporates that shows the chemical change.

indicate valleys, hills, steepness and gentleness of slopes.

explanation:

contour lines on a map indicate elevation, or depth. numeric notations on contour lines refer to the level of elevation, or height about sea level.

sorry i was late, but i don't know what assignment your talking about, i'm in flvs as well, im in earth space science. but u are behind pace bc every class should be in the 3's or 4'