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Explain the difference between mechanical and chemical weathering?
Mechanical weathering is the breakdown of rocks into smaller pieces without altering their chemical composition, usually by processes such as frost wedging or root expansion. Chemical weathering, on the other hand, involves changes in the chemical composition of rocks due to reactions with substances like water, acid rain, or oxygen, leading to the breakdown of minerals.
Explain the difference between chemical properties and physical properties?
Chemical properties describe how a substance can form new substances by undergoing chemical reactions, like flammability or reactivity. Physical properties describe characteristics that can be observed without changing the substance's identity, like color, density, or melting point.
How do chemists explain this difference?
Chemists explain differences in properties or behavior by looking at the molecular structure of substances. Variation in molecular structure can lead to differences in physical, chemical, and biological properties. By understanding how atoms are arranged and interact within molecules, chemists can explain why substances exhibit different characteristics.
Need help on science homework has anyone answered this question Are the changes from a to b and from b to c physical or chemical changes explain your answer?
The changes from A to B and from B to C are physical changes. Physical changes do not alter the chemical composition of the substances involved. In this case, the changes are likely related to states of matter or physical appearance, rather than chemical composition.
Is stone breaking a physical change?
Breaking of stone is a physical or chemical change? Explain.
Explain the similarities and difference between physical weathering and chemical weathering?
Physical weathering involves the breakdown of rocks into smaller fragments without altering their chemical composition, typically through processes like freezing and thawing or abrasion. Chemical weathering, on the other hand, involves the decomposition of rocks through chemical reactions that change their composition, such as oxidation or dissolution by acidic water. Both processes contribute to the overall breakdown of rocks, with physical weathering primarily affecting the size and shape of rocks, and chemical weathering changing their chemical structure.
Explain whether water is a cause of either chemical weathering physical weathering or both?
Water can cause both chemical and physical weathering. In chemical weathering, water can react with minerals in rocks to break them down into new substances. In physical weathering, water can seep into cracks in rocks, freeze, and expand, creating pressure that breaks the rock apart.
Explain the difference between mechanical and chemical weathering?
Mechanical weathering is the breakdown of rocks into smaller pieces without altering their chemical composition, usually by processes such as frost wedging or root expansion. Chemical weathering, on the other hand, involves changes in the chemical composition of rocks due to reactions with substances like water, acid rain, or oxygen, leading to the breakdown of minerals.
How to explain weathering?
Weathering is the process by which rocks and minerals are broken down into smaller pieces through exposure to natural forces like water, wind, and temperature fluctuations. There are two main types of weathering: mechanical weathering, which involves physical breakdown of rocks into smaller fragments, and chemical weathering, which involves chemical reactions that alter the composition of rocks. Over time, weathering can contribute to the formation of soil and shape the Earth's surface.
How do you explain the three types of weathering?
That is something that would show up in bold print in your text book. It's not stupid. physical chemical biological Physical weathering breaks rocks down into smaller pieces. Types of physical weathering include frost wedging, exfoliation, and thermal expansion. Chemical weathering breaks rocks down chemically adding or removing chemical elements, and changes them into other materials. Chemical weathering consists of chemical reactions, most of which involve water. Types of chemical weathering include: dissolution hydrolysis oxidation Biological weathering is the breakdown of rock caused by the action of living organisms, including plants, burrowing animals, and lichen (a crusty, rubbery, light green organic material that grows in patches on rocks as well as on wood). Lichen is a combination of fungus and algae, living together in a symbiotic relationship. Lichens can live on bare rock, and they break down rocks by secreting acids and other chemicals. The fungal part of the association secretes the acids, which react to dissolve the minerals, which are then used by the algae. Later, water seeps into the crevices etched by the acid, and assists in the breakdown through freezing (frost-wedging) and chemical weathering.
Explain different chemical weathering and mechanical weathering?
Chemical weathering rocks may decompose or dissolve and at the same time change in compostion through a certain chemical process to form residuals materials. Mechanical weathering happens when rocks disintegrate or breaks down into smaller pieces through physical forces. (rain, snow, freezing)
Alternate Wordings for 'What is chemical change and physical change and give its examples?
Explain the difference between chemical change and physical change, and provide examples of each. Define chemical change and physical change, and provide examples to illustrate. Differentiate between chemical change and physical change, and give examples to clarify the distinction.
Is twisting a wire chemical or physical change explain?
It is physical. The wire changes shape, but it is still made of the same materials.
Is it a chemical or physical change when heat is put over sugar?
its physical change.to explain,the conversion of solid to liquid is physical
Explain the difference between chemical properties and physical properties?
Chemical properties describe how a substance can form new substances by undergoing chemical reactions, like flammability or reactivity. Physical properties describe characteristics that can be observed without changing the substance's identity, like color, density, or melting point.
Can you explain the difference between physical changes and chemical changes?
Physical changes is change in property. Ex) change from solid to liquid....ice to water. Chemical change changes to different substances. Ex) rotting of fruit.
What statement is best to explain the process results in weathering?
Weathering is the process where rocks and minerals are broken down into smaller pieces through various physical, chemical, or biological processes. These smaller pieces can then be further eroded and transported by natural forces like wind, water, or ice. Over time, weathering can transform solid rock into sediment and contribute to the formation of soil.
