At 400 K oxalic acid decomposes according to the reaction:
H2C2O4(g)?CO2(g)+HCOOH(g)
In three separate experiments, the intial pressure of oxalic acid and final total pressure after 20,000 s is measured.

Experiment

1
2
3

P H2C2O4 at t = 0
65.8
92.1
111

PTotal at t = 20,000 s

107

150

181

Find the rate law of the reaction.

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'

answer is: naturally occurring solid, inorganic compound or element is mineral.

minerals usually have crystalline form, that means than crystal constituents (atoms, molecules or ions) are arranged in a highly ordered microscopic structure, forming a crystal lattice that extends in all directions.

for example magnetite is a mineral of iron oxide (fe₂o₃).

calcite is a carbonate mineral and the most stable polymorph of calcium carbonate (caco₃).

dolomite is an   carbonate mineral composed of calcium magnesium carbonate (camg(co₃)₂).

i don,t know so just answer mine

the dissolution of polymer can be thermodynamically described in 2 steps.