To understand how elementary steps make up a mechanism, that the rate law for an elementary step (unlike the rate law for an overall reaction) can be determined without experiment, and how to write the rate law for an elementary step (just by analyzing its balanced equation). Very often, a reaction does not tell us the whole story. For instance, the reaction does not involve a collision between an NO₂ molecule and a CO molecule. Based on experimental data at moderate tempertures, this reaction is thought to occur in the following two steps:

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).

gas

explanation:

smoke is the matter of a gas

hey there!

mass = 6.75 g

volume =   9 cm³

therefore:

d = mass / volume

d   = 6.75 / 9

d = 0.7 g/cm³

answer b