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Chemical: Toxicity is about a harmful material interacting chemically with other substances in the body.
These chemical changes are the consequence of a chemical reaction.
For all materials physical properties are related to some characteristics as density, hardness, refractive index etc. and the chemical properties are related to some characteristics as chemical reactivity, flammability, oxydation etc. Physical properties are characterized by getting back the original material by changing its form, state, etc. Chemical properties are characterized by a complete change in the material itself i.e. you cannot get back the same material.
This a chemical compound, having 2 or 3 different atoms in the molecule.
A chemical change.
characteristics or chemical and physical properties
Light a match. The glob of material on the end, and later the wood/paper stick, is undergoing a chemical change.
Yes.
A battery is chemical energy creating electrical energy. Nuclear is cause by nuclear material either decaying or undergoing fusion, only present in nuclear material. Mechanical energy is a physical force cause by the transfer of kinetic energy.
Chemical: Toxicity is about a harmful material interacting chemically with other substances in the body.
A battery is chemical energy creating electrical energy. Nuclear is cause by nuclear material either decaying or undergoing fusion, only present in nuclear material. Mechanical energy is a physical force cause by the transfer of kinetic energy.
These chemical changes are the consequence of a chemical reaction.
For all materials physical properties are related to some characteristics as density, hardness, refractive index etc. and the chemical properties are related to some characteristics as chemical reactivity, flammability, oxydation etc. Physical properties are characterized by getting back the original material by changing its form, state, etc. Chemical properties are characterized by a complete change in the material itself i.e. you cannot get back the same material.
SILICON same as any other diode but with different characteristics
no the material stay the same.
depends on which metal, and which ore. Most are crushed- then some are roasted (heated) some are separated by weight, physical characteristics, etc. In some cases, metals are recovered by chemical reaction, using a chemical that dissolves the metal, which removes it from the waste material.
Chemical formulas or symbols do not vary with the phase of a material. Therefore, the chemical symbol* for copper is always Cu, whether the metal is solid, liquid, or gas. _________________________ *Chemical elements such as copper have symbols, rather than formulas, which are characteristics of chemical compounds.