This is a heterogeneous mixture cause you can see all the parts of the taco
A metal that is able to be hammered or pressed permanently out of shape without breaking or cracking.
Solid is one of the four fundamental states of matter
Milk has a strong source of calcium
(of a metal) able to be drawn out into a thin wire.
A liquid is made up of tiny vibrating particles of matter, such as atoms, held together by intermolecular bonds.
Pure carbon is available in a number of different forms (allotrope). The most common form of pure carbon is α-graphite. This is also the thermodynamically most stable form
Potassium is a chemical element with symbol K and atomic number 19. Elemental potassium is a soft silvery-white alkali metal that oxidizes rapidly in air and is very reactive with water
The alkaline earth elements are metallic elements found in the second group of the periodic table. All alkaline earth elements have an oxidation number of +2, making them very reactive. Because of their reactivity, the alkaline metals are not found free in nature.
The 38 elements in groups 3 through 12 of the periodic table are called "transition metals". As with all metals, the transition elements are both ductile and malleable, and conduct electricity and heat. The interesting thing about transition metals is that their valence electrons, or the electrons they use to combine with other elements, are present in more than one shell.
Physical changes involve states of matter and energy. No new substance is created during a physical change, although the matter takes a different form. The size, shape, and color of matter may change. Also, physical changes occur when substances are mixed, but don't chemically react