Examples of ore in the following topics:
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- Such charges are produced by removing (or adding) electrons from (or to) an object.
- Atoms or molecules that carry a charge are called ions, and the same principle governs their interactions.Many organic reactions are influenced by a similar factor.
- Electron deficient species, which may or may not be positively charged, are attracted to electron rich species, which may or may not be negatively charged.
- Electrophiles: Electron deficient atoms, molecules or ions that seek electron rich reaction partners.
- Nucleophiles: Electron rich atoms, molecules or ions that seek electron deficient reaction partners.
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- The grade or concentration of an ore mineral, or metal, as well as its form of occurrence, will directly affect the costs associated with mining it.
- The process of ore formation is called ore genesis.
- Then, the minerals need to be separated out of the ore
- In order to convert a metal oxide or sulfide to a purer metal, the ore must be reduced physically, chemically, or electrolytically.
- After mining, large pieces of the ore feed are broken through crushing and/or grinding.
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- An alloy is a mixture or metallic solid solution composed of two or more elements.
- An alloy is a mixture or metallic-solid solution composed of two or more elements.
- Partial solutions give two or more phases that may or may not be homogeneous in distribution, depending on thermal history.
- Partial solutions give two or more phases that may or may not be homogeneous in distribution, depending on thermal history.
- Alloying a metal involves combining it with one or more other metals or non-metals, which often enhances its properties.
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- Hydrides are compounds in which one or more hydrogen anions have nucleophilic, reducing, or basic properties.
- A hydride is the anion of hydrogen (H−), and it can form compounds in which one or more hydrogen centers have nucleophilic, reducing, or basic properties.
- The energy carrier NADH reacts as a hydride donor or hydride equivalent.
- Ionic, or saline, hydride is a hydrogen atom bound to an extremely electropositive metal, generally an alkali metal or an alkaline earth metal (for example, potassium hydride or KH).
- Interstitial hydrides most commonly exist within metals or alloys.
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- Alkenes and alkynes are named similarly to alkanes, based on the longest chain that contains the double or triple bond.
- Alkenes are hydrocarbons that contain one or more double bonds, while alkynes contain one or more triple bonds.
- Cis or trans is used to indicate whether higher priority substituents are located on the same or opposite sides of the bond.
- For multiple double or triple bonds, "di-," "tri-," or "tetra-" can be added prior to the "-ene" or "-yne."
- Translate between the structure and the name of an alkene or alkyne compound
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- Chemical Reaction: A transformation resulting in a change of composition, constitution and/or configuration of a compound (referred to as the reactant or substrate).
- Reactant or Substrate: The organic compound undergoing change in a chemical reaction.
- Most (or all) of the reactant molecule is normally incorporated as part of the product molecule.
- It may be organic or inorganic; small or large; gas, liquid or solid.
- The portion of a reagent that ends up being incorporated in the product may range from all to very little or none.
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- In chemistry, a coordination or metal complex consists of an atom or ion (usually metallic) and a surrounding array of bound molecules or anions known as ligands or complexing agents.
- The ions or molecules surrounding the central atom are called ligands.
- The central atom or ion, together with all ligands, comprise the coordination sphere.
- The central atoms or ion and the donor atoms comprise the first coordination sphere.
- If the ligands around the metal are carefully chosen, the metal can aid in (stoichiometric or catalytic) transformations of molecules or be used as a sensor.
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- The others usually occur as isolated pockets where a natural chemical process reduces a common compound or ore of the metal.
- This leaves the pure metal behind as small flakes or inclusions.
- The aim of making alloys is generally to make the metals less brittle, harder, or more resistant to corrosion, or to improve their color or luster.
- After the ore is mined, the metals must be extracted, usually by chemical or electrolytic reduction.
- When a metal ore is an ionic compound of that metal and a non-metal, the ore must usually be smelted (or heated with a reducing agent) to extract the pure metal.
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- Nevertheless, evidence for their existence may be obtained by other means, including spectroscopic observation or inference from kinetic results.
- The potential energy of a reacting system changes as the reaction progresses.The overall change may be exothermic ( energy is released ) or endothermic ( energy must be added ), and there is usually an activation energy requirement as well.
- As a rule, compounds constructed of strong covalent bonds are more stable than compounds incorporating one or more relatively weak bonds.
- Electron deficient species or groups, which may or may not be positively charged, are attracted to electron rich species or groups, which may or may not be negatively charged.
- In many reactions atomic or molecular orbitals interact in a manner that has an optimal configurational or geometrical alignment.
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- CH3(CH2)2CO2C2H5 is ethyl butanoate (or ethyl butyrate).
- CH3CH2COCl is propanoyl chloride (or propionyl chloride).
- CH3CONH2 is ethanamide (or acetamide). 2º & 3º-amides have alkyl substituents on the nitrogen atom.
- Commonly, the oic acid or ic acid ending of the corresponding carboxylic acid is replaced by onitrile.
- (CH3)2CHCH2C≡N is 3-methylbutanenitrile (or isovaleronitrile).