Optometrists are eye health care professionals state-licensed to diagnose and treat diseases and disorders of the eye and visual system. boroyan eye associates, p.c. npi is 1437246899. The provider is registered as an organization entity type and is a single specialty group. The provider's business location address is:
A piece of aluminum foil contains only one kind of particle. Each aluminum particle is the same as every other aluminum particle. White table sugar is made of only sugar particles.Aluminum and table sugar are both examples of pure substances.A pure substance is a type of matter that contains only one kind of particle (Figure 3(a)). Other examples of pure substances include distilled water and salt.Uranium, used in nuclear power stations to produce electricity, is another pure substance. Water from your tap is not a pure substance. piece of aluminum foil contains only one kind of particle. Each aluminum particle is the same as every other aluminum particle. White table sugar is made of only sugar particles.Aluminum and table sugar are both examples of pure substances.
A substance is matter which has a specific composition and specific properties. Every pure element is a substance. Every pure compound is a substance. Examples of substances: Iron is an element and hence is also a substance. Methane is a compound and hence is also a substance.Examples of non-substances: Salt water is not a substance.It is a mixture of two substances-sodium chloride and water. Its composition and therefore its properties are not fixed.Gasoline is not a substance.xamples of non-substances: Salt water is not a substance. It is a mixture of two substances-sodium chloride and water. Its composition and therefore its properties are not fixed. Gasoline is not a substance.