It is a compound because of its constant composition.
the substance is substance
Substance A is an element, substance Z is a compound.
A commercial building , is a building that has only commercial offices in it.
Molecules are the smallest part of a substance. Molecules have all the properties of a substance.
Waste
Commercial preparations of glucosamine are derived from chitin, which is a substance found in the outer covering of such shellfish as lobster, crab, and shrimp
Washing soda crystals are a substance that can be used to wash clothes, etc. Commercial products, detergents and liquids can be used to clean a wide variety of items: clothes, dishes, etc.
The people that grows plants and vegetables is called gardeners .
On the parts, my suspicion is cooked, overheated motor oil. Coming from the sky, no idea.
It is a compound because of its constant composition.
Ununpentium is not naturally occurring and can only be made under extreme lab conditions in miniscule amounts. The half life of Ununpentium is extremely short, therefore any of this substance which CAN be made would not exist for long. Therefore, the cost is essentially whatever expense is incurred during the procedure of artificially creating the material. This would likely be a vast number.
You can use hydrogen peroxide and baking soda. You can also use strawberries to whiten your teeth. You can also use commercial toothpaste made for whitening or have them bleached at the dentist.
A solute can dissolve in another substance. The substance that does the dissolving is called the solvent.
the substance is substance
Substance
If a substance has a PH of 11 then the substance is basic.