How many ways can the chemical element rhodium be used?
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One way is to plate metal as a substitute for chromium. Rhodium is often referred to as hard chrome.
878474
Um, there's over a hundred elements.  I'm not going to name them all for you.  Look at a periodic table.  I'm sure there's one in your chemistry book.
750030
1. Iron (III) Hydroxide\n2. Ammonium Iodide\n3. Aluminum Hydroxide\n4. Sodium Carbonate\nThis site also has many others and is a great place to confirm your answers!\nhttp://www.quia.com/jg/125193list.html\nGood luck!
770561
these arent elements... they are compounds. you have to separate them first. then look at ur P.T. (periodic table) and if u look at the 8 tallest rows (the first 2 and last 6). from left to right, number the columns 1-8. whatever column number an element is in, that is how many dots are used. i hope this helped!
563258
No, it is not possible to mix different elements on the periodic table to make a new element.\n\nAn element is defined by the number of protons in the nucleus of an atom.  A specific element has a specific number of protons in the nucleus of one of its atoms.  When you mix different elements, you are mixing atoms of that element, but the nuclei within the atoms are not mixing, they are staying separate and distinct, therefore you are only creating a mixture of two elements, not a new element all together.\n\nThe only way to create a new element would be to add protons to an atoms nucleus, something that is not easy to do, and if done, often creates a very unstable atom.\n\nA state of matter (solid, liquid, gas, plasma, Bose-Einstein condensate) are dependent on the physical conditions of the material, not the composition of the material.
957199
If you are doing it in a laboratory setting, you can mix it with carbon and reduce it to the metal. You will need high temperatures, though.
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As mentioned above, Mg(HCO3)2\n\nIt was so easy.. in which grade u study?\n Do u know how to make formulae? Just learn the valencies and symbols of most commonly used elements... Here are some for your help...\n\nMagnesium (Mg): 2\nAluminium (Al): 3\nCarbonate (CO3): 2\nBicarbonate (HCO3): 1\nSulphate (SO4): 2\nBisulphate (HSO4): 1\nSodium (Na): 1\nBoron (B): 3\nBeryllium (Be): 2\nCalcium (Ca): 2\nPotassium (K): 1\nChlorine (Cl): 1\nBromine (Br): 2\nFluorine (F): 1\nNitrogen (N): 1\nCarbon (C): 4\nHydrogen (H): 1\nOxygen (O): 2\nHydroxyl (OH):1\nNitrate (NO3): 1\n\nI think they are enough for you...\n\nNow see how to make a formula:\nStep No. 1: Write the symbol of each element in a compound. \nE.g. You want to make the formula of magnesium bicarbonate. Write their symbols...\n\nMg HCO3\n\nStep No.2: Write their valencies.. \nThe valency of Mg is 2\nThe valency of HCO3 is 1\n\nMg (2) HCO3 (1)\n\nStep No.3: Now cross the valencies of each element.. It means write the valency of Mg with HCO3 and write the valency of HCO3 with Mg\n\nand here you go with the formula...\nMg (1) HCO3 (2)\n\nNo need to write 1 with any element..\nso it becomes,\nMg(HCO3)2\n\nHere are some more examples..\nPotassium hydroxide\nK OH\nK (1) OH (1)\nKOH\n\nCalcium hydroxide\nCa OH\nCa (2) OH (1)\nCa(OH)2\n\nMagnesium chloride\nMg Cl\nMg (2) Cl (1)\nMgCl2\n\nSodium sulphate\nNa SO4\nNa(1) SO4(2)\nNa2SO4\n\nAluminium nitrate\nAl NO3\nAl (3) NO3 (1)\nAl(NO3)3\n\nHere is one last rule for you:\nIf the valencies are equal, do not cross..\n\nExample:\nCalcium sulphate:\nCa SO4\nCa (2) SO4 (2)\nNow both the valencies are equal, so just cancel the valencies...\nand the formula becomes,\nCaSO4\n\nAhhhh... got tired... Hope this helps.. good luck for you submission.. Now u can also explain your teacher that how u got the formula...\ncya\nAllah Hafiz
371080
Organometallics are very important in pharmaceuticals.\nThey can be used to make synthetic haemoglobin which is used to transport oxygen around in the blood stream.
112894
Haven't had chem in a while but maybe it would help to write out all the individual symbols.  Your second example would look like\n\nHHHPOOOO + MgOOHH  = MgMgMgPPOOOOOOOO + HHO\n\nthen you can see that the left side needs three Mg so you'd need 3 of the Mg(OH)2 to balance.  The left side also needs two P so there needs to be two H3PO4 there.  This makes a total of 12 H on the left, so to balance that you need 6 H2O on the right.  This also gives 14 O on the right to balance the 14 O you'd now have on the left.  So\n2 H3PO4 + 3 Mg(OH)2 = Mg3(PO4)2 + 6 H2O
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a)silver bromide\nb) tricalcium phosphate\nc)Lithum Hydride\nd)Radium Chloride
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Uses of praseodymium:\n\nAs an alloying agent with magnesium to create high-strength metals that are used in aircraft engines. \nPraseodymium forms the core of carbon arc lights which are used in the motion picture industry for studio lighting and projector lights. \nPraseodymium compounds are used to give glasses and enamels a yellow color. \nPraseodymium is a component of didymium glass, which is used to make certain types of welder's and glass blower's goggles. \nDr. Matthew Sellars of the Laser Physics Centre at the Australian National University in Canberra, Australia slowed down a light pulse to a few hundred meters per second using praseodymium mixed with silicate crystal. \n\nApplications\nUses of neodymium include\n\nNeodymium is a component of didymium used for colouring glass to make welder's goggles. \nNeodymium colours glass in delicate shades ranging from pure violet through wine-red and warm grey. Light transmitted through such glass shows unusually sharp absorption bands; the glass is used in astronomical work to produce sharp bands by which spectral lines may be calibrated. Neodymium is also used to remove the green colour caused by iron contaminants from glass. \nNeodymium salts are used as a colourant for enamels. \nNeodymium is used in the strongest permanent magnets known - Nd2Fe14B. These magnets are cheaper, lighter, and stronger than samarium-cobalt magnets. Neodymium magnets appear in high-quality products such as microphones, professional loudspeakers, in-ear headphones and computer hard disks where low mass, small volume, or strong magnetic fields are required. \nProbably because of similarities to Ca2+, Nd3+ has been reported [1] to promote plant growth. Rare earth element compounds are frequently used in China as fertilizer. \nSize and strength of volcanic eruption can be predicted by scanning for neodymium isotopes. Small and large volcanic eruptions produce lava with different neodymium isotope composition. From the composition of isotopes, scientists predict how big the coming eruption will be, and use this information to warn residents of the intensity of the eruption. \nCertain transparent materials with a small concentration of neodymium ions can be used in lasers as gain media for infrared wavelengths (1054-1064 nm), e.g. Nd:YAG (yttrium aluminium garnet), Nd:YLF (yttrium lithium fluoride), Nd:YVO4 (yttrium orthvanadate), and Nd:glass. The current laser at the UK Atomic Weapons Establishment (AWE), the HELEN 1-TW neodymium-glass laser, can access the midpoints of pressure and temperature regions and is used to acquire data for modelling on how density, temperature and pressure interact inside warheads. HELEN can create plasmas of around 106 K, from which opacity and transmission of radiation are measured. \nNeodymium glass (Nd:Glass) solid-state lasers are used in extremely high power (terawatt scale), high energy (megajoules) multiple beam systems for inertial confinement fusion. Nd:Glass lasers are usually frequency tripled to the third harmonic at 351 nm in laser fusion
979040
1) ZnNO2\n2) Co(HSO3)3\n3) HgF\n4) Al2(CO3)3\n5) CeC2O4\n6) BaClO\n7) SnBr2\n8) Mg(HSO3)2
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H2 + Cl2 -> 2HCl\n2Ag + H2S -> Ag2S + H2 \nCH4 + 2O2 -> CO2 + 2H2O\n2HgO -> 2Hg + O2\n3Fe + 4H2O -> Fe3O4 + 4H2
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NaC2H3O2 + H2O\n\nyou can't combine things unless they match with numerals. such as... you cannot add H3 and H because they are different chemicals/elements. if it were 3H + H you could combine them because its telling you that you have 3 hydrogens + and additional hydrogen. thus leaving you with NaC2H3O2 + whatever is left over. which would be an O and 2 H's. giving you the +H2O\n\nhope this helps!
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4Cr + 3O2 --> 2Cr2O3\nChromium(III) oxide or Chromium oxide.
403502
Here is one : http://en.wikipedia.org/wiki/Periodic_table
138848
Here is one example ,\n\nAgNO3(aq) + NaCl(aq)-> AgCl(s)white precipitate + NaNO3(aq)