20 points Do you think that every substance can be separated
physically or chemically into other substances? Explain your
answer.

No

Explanation:  the reason is that pure substances cannot be physically separated while mixtures can be. ... A pure substance, any compound or element, can't be separated into different atoms by physical methods. A chemical reaction must occur to separate a compound into its different atoms/elements.

not clear

atomic number of carbon is 6

electronic configuration of carbon is 1s²2s²2p²

orbital diagram of c is as shown here in the image.