What two categorical ways of thinking about matter are discussed in the passage?

The two categorical ways of thinking about the matter are discussed in the passage are physical and chemical.

The matter has been the unit, from which everything is made up of. The passage asks about the matter has been the part of each and every physical and chemical reaction.

All the matter has an atom as its smallest building block. The elements listed in the periodic table also matter. The smallest and the biggest entity has consisted of matter.

The physical categorial way of thinking of matter involves the properties that can be sensed by the five human senses. The things that can be seen, heard, tasted, touched, and felt are all matters.

The chemical properties of the matter that result in the formation of a new matter that is irreversible in nature.

For more information about the matter, refer to the link:

link

There's no passage but I can say that matter are that ''thing'' which extend through all Universe, matter is everything. It can be seen or felt as liquid, gas or solid. This changes of its state depend on the amount of energy that is involved.

So, here is used categorical thinking because is a abstract concept that is hard to understand sometimes. It's abstract when we say that matter is all, not  just what we see, but even what we don't see like ''Dark Matter'', which is the majority in the Universe.

r just means there's a number of carbon in teh chain. for example rcooh means that after x number of carbon, the chain ends with cooh.

explanation:

since the atomic number is the number of protons in the nucleus, as we move to the left on the periodic table, the electrostatic pull between the nucleus and the valence electron shell decreases. as we move down a group (vertical column), the valence shell energy level gets further and further from the nucleus.