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You might be referring to the metals whose oxides are amphoteric-can behave either as acids or bases. There are many of these, including zinc and aluminum. For more about this subject see the wikipedia article about amphoterism.
Carbon. Your welcome :)
organic compounds are complex carbon based compoundsinorganic compounds are everything elseorganic DNAvitamin C (ascorbic acid)penicillinplasticsinsulinoilsgasolineTNTaspirin (acetylsalicylic acid)phenylmercuric acetateinorganic waternitric acidyellowcake (uranium oxide)ruby (aluminum oxide doped with chromium)rust (iron oxide)oleum (highly concentrated sulphuric acid)hydrazinenitrogen triiodidearsinesodium azide
All organic compounds contain the element carbon.
X2(so4)3
In higher oxide Metal = 80% Oxygen = (100-80)% = 20% Therefore, we can say that 4 parts of metal combines with 1 part of oxygen. Now, 0.72 g of lower oxide on oxidation gives 0.8 g of higher oxide. It can be assumed that the mass percent of metal in 0.8 g is same as that of 0.72 g of lower oxide. So, Mass of metal in higher oxide = (80/100) x 0.8 g = 0.64 g If in 0.8 g of higher oxide 0.64 g is metal then mass of oxygen present in higher oxide will be (0.8 - 0.64) g = 0.16 g Since, lower oxide contains the same mass of metal as that of higher oxide, we need to calculate the mass of oxygen in lower oxide. Mass of oxygen in lower oxide = (0.72-0.64) g = 0.08 g According to Law to multiple proportions if two elements combine with each other to form two different compounds then the ratio of masses of that element which combines with the other element whose mass is fixed in both the compounds, will be in small whole numbers. Now, in the given problem the mass of metal in both the oxide is fixed so, for the data to illustrate the law of multiple proportion the ratio of mass of oxygen in both the oxides should be in whole numbers. Now, mass of oxygen in higher oxide : mass of oxygen in lower oxide = 0.16 : 0.08 = 2 : 1. Therefore, it can be said that the given data depicts law of multiple proportion.
"Very malleable silver white metal that forms a protective oxide film on its surface that prevents it from reacting with oxygen." http://environmentalchemistry.com/yogi/periodic/Sn.html#Physical
All electrolytic capacitors (e-caps) are polarized capacitors whose anode electrode (+) are made of a special metal on which an insulating oxide layer originates by anodization (forming), which acts as the dielectric of the electrolytic capacitor.
Nitrous oxide. This is a highly flammable gas, used medically as an anaesthetic.
iron is the metal whose food is made
You might be referring to the metals whose oxides are amphoteric-can behave either as acids or bases. There are many of these, including zinc and aluminum. For more about this subject see the wikipedia article about amphoterism.
Carbon. Your welcome :)
Sulfur trioxide.
Metal value is determined by the purity of the metal. It is a commodity whose price depends on supply and demand.
carbon
Ferrite has a cubic crystalline structure with the chemical formula MO.Fe2O3 where Fe2O3 is iron oxide and MO refers to a combination of two or more divalent metal (i.e: zinc, nickel, manganese and copper) oxides. The addition of such metal oxides in various amounts allows the creation of many different materials whose properties can be tailored for a variety of uses.
Carbon dioxide is such compound. It contains one carbon and two oxygen.