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Physical properties of coal and snow?
Coal is a black, carbon-rich sedimentary rock that is combustible and used as a fuel source. It is hard, brittle, and has a black or dark brown appearance. Snow is a precipitation in the form of ice crystals that fall from clouds. It is white, soft, and composed of frozen water molecules. Snow is light and can vary in density depending on the temperature and moisture content.
What are the two physical properties you would use to tell the difference between coal and snow?
> Color > Hardness > Melting Point > Flammability to name a few ...
Name the physical properties between coal and snow?
Coal is a solid, black or brownish-black substance, while snow is a soft, white, crystalline form of ice. Coal is combustible and used as a fossil fuel, whereas snow melts into water when heated.
Is wood being softer than coal a physical property?
Yes, the hardness of a material is a physical property. Wood is softer than coal, meaning it has a lower hardness and can be easily scratched or dented compared to coal.
What is the Physical properties of coal and snow?
Coal is a black, sedimentary rock that is combustible and composed mainly of carbon. It is hard, brittle, and has a black to brownish-black color. Snow, on the other hand, is a precipitation in the form of ice crystals that falls from clouds. It is white, fluffy, and soft to the touch.
Is coal dust chemical or a physical toxicant?
Coal dust is considered a physical toxicant because it can cause harm through its physical properties, such as being inhaled and causing respiratory issues or skin irritation. Chemical toxicants, on the other hand, refer to substances that cause harm due to their chemical properties or composition.
How would you describe peat coal?
Decomposed organic material .
Coal is coal and diamond is diamond but coal is not a diamond?
Correct.Although they are based on the same element (carbon) they have vastly different structures and atomic arrangements, resulting in very different physical and chemical properties. Such forms are known chemically as allotropes.
Physical properties of coal and snow?
Coal is a black, carbon-rich sedimentary rock that is combustible and used as a fuel source. It is hard, brittle, and has a black or dark brown appearance. Snow is a precipitation in the form of ice crystals that fall from clouds. It is white, soft, and composed of frozen water molecules. Snow is light and can vary in density depending on the temperature and moisture content.
What is physical properties of coal?
Physical properties of coal include its carbon content, which typically ranges from 45% to 86%, and its calorific value, which indicates the energy released upon combustion. Coal's appearance can vary from dull black to shiny, depending on its type, with common forms including anthracite, bituminous, sub-bituminous, and lignite. Other notable properties include its hardness, specific gravity, and porosity, which affect its combustibility and usability in various applications. Additionally, coal may contain impurities such as sulfur and ash, which influence its environmental impact when burned.
What are the two physical properties you would use to tell the difference between coal and snow?
> Color > Hardness > Melting Point > Flammability to name a few ...
Is breaking coal into pieces chemical or physical change?
Breaking coal into pieces is a physical change because it does not alter the chemical composition of the coal. The coal remains composed of the same elements before and after being broken into pieces.
Is mining coal a physical or chemical change?
Mining coal is a physical change because the act of extracting coal from the earth does not alter its chemical composition. The coal remains chemically the same before and after the mining process.
What is the Name of the physical property you would used to tell the difference between coal and snow?
color
Can coal change into a diamond?
Yes, coal can change into a diamond through a process called metamorphism, which involves high pressure and high temperature deep within the Earth's crust. Both coal and diamond are made of carbon atoms, but the arrangement of the atoms is different, resulting in the difference in their physical properties.
Is the change of plants remains into coal a physical or a chemical change?
The change of plant remains into coal is a chemical change. This process, known as coalification, involves the chemical alteration of organic material under high temperature and pressure over millions of years, leading to the formation of coal with different properties.
How is an chemical change differs from a physical change?
Physical change is the change in which only physical properties changes ,like color, hardness, density etc. Chemical changes affect the composition as well as chemical properties of matter and result in formation of new substance. Examples of chemical changes are : Burning of coal Burning of Paper Electrolysis of water
