Answer:
A
Explanation:
because you can turn the melted iron back to the solid it was before
Answer : As I understand this is question of matching the correct pairs.
So here are the correct pairs.
1) The attraction
between molecules at the surface of a liquid column
---->Surface tension
Surface tension is a phenomenon observed at the <span>surface film of a liquid which is usually caused by the attraction of the particles on the surface layer by the bulk moiety of the liquid, and which tends to minimize its surface area.</span>
2) The energy of
motion
----> Kinetic energy
Kinetic energy is the energy which is possessed by an object due to motion.
3) The movement
of liquids through the spaces of materials
----> Capillary action
Capillary action is defined as<span> the ability of any liquid to flow through the narrow spaces without any of the assistance, or even in opposition to, external force like gravitational force.</span>
4) The overall
movement of suspended or dissolved particles resulting from the random movements
of individual particles
----> Diffusion
Diffusion in liquids can be defined as the random movement of particles which are dissolved or are in suspended state in liquid.
5) Attraction of
one particle in a material for another
----> Cohesion
Cohesion is defined as the attraction between two different particles in a state of matter
6) The
attraction between unlike substances
----> Adhesion
Adhesion is a property of attraction between two unlike substances.
7) A measure oof
the resistance of a liquid to flow
----> Viscosity
Viscosity is the term used to define as the resistivity of liquid to flow.
Answer:
coal
Peat
Bituminous
Anthracite
Explanation:
Peat is the first step in coal formation. Peat is composed of over 60% organic matter; typically, ferns and vegetation found in swamps or bogs. As a result of the high water content of this environment, peat contains a lot of water, which limits its heat content or the amount of energy it contains. It's a very soft brown coal.
Bituminous coal is formed as more pressure is applied to lignite coal. The greater the pressure applied, the more water is expelled, which increases the amount of pure carbon present and increases the heat content of the coal. Bituminous coal is often classified as sub-bituminous or bituminous. The difference is that sub-bituminous is the transition stage from lignite to bituminous coal. Bituminous coal is widely used in the United States and across Europe.
Anthracite coal is a metamorphic rock and is considered the highest grade coal. It's hard and dark black in color. It has a very light weight when compared to other forms of coal, as there is very little water present in anthracite. As a result, anthracite has the highest heat content. Anthracite is formed when bituminous coal is subjected to great pressures, such as those associated with the folding of rock during the creation of mountain ranges.
coal is just well...coal :3
Answer:
Minerals
Explanation:
Minerals are usually defined as naturally occurring inorganic substances, that are comprised of specific chemical composition as well as having a well organized internal structure of atoms.
Different mineral forms under different conditions and under different geological settings. These minerals combine with one another giving rise to the formation of rocks.
They are characterized by the presence of both physical as well as chemical properties.
Example of some minerals includes, Calcite, Fluorite, Quartz, and Feldspar.
Blood is considered a suspension because it contains particles that can settle out.
A (heterogeneous) suspension is defined as a mixture between a liquid and particles of a solid. In the case, the particles do not dissolve. The particles and the liquid are mixed up so that the particles are dispersed throughout the liquid. They are "suspended" in the liquid. A key characteristic of a suspension is that the solid particles will settle and separate over time if left alone.
This is exactly what happens when anti-coagulated blood is left to stand alone for some time. Blood cells separate and settle from the plasma, the watery part of the blood.
