If soldering lead contains 63% silver,_____ grams of soldering lead can be made from 520 grams of silver.?
465571
Let: \nx = amount of soldering lead produced\n63%x = 520\nx = 825.4 grams
359119
look at column 7.  all of the densities appear there in grams/cm3.\n\nhttp://www.science.co.il/PTelements.asp
511485
There's no way to tell - it depends on the density of the material tht you're talking about. 900 cubic feet of lead is much heavier than 900 cubic feet of water.
953082
Okay, it's been a looooooong time since I had to use my chemistry skills, so lets see what I have:\n\nCopper is more magnetic with electrons than silver is because it's electrons (with fewer of them) are close to the nucleus (or whatever you call it) of the element.  Silver is more apt to lose its electrons with them being so far away.  \n\nCopper is more often found in a +2 state.  So I'd say that's a safe bet to go with.  I'd only assume a +1 state if your teacher said so.\n\nSo therefore:  2AgNO3 + Cu -> Cu(NO3)2 + 2 Ag would probably be your best bet.\n\nBut once again, it's been a long time since I used this so I don't know how right I might be.
853078
Composition\nCopper Plated Zinc\n\n2.5% Cu\nBalance Zn\n-----------------\nWeight 2.500 g \n---------------------\nDiameter 0.750 in.\n19.05 mm\n---------------\nThickness 1.55 mm
525471
Sure why not?\n\nDensity of Lead\n11.4g/cm^3\n\nDensity of Silver\n10.4g/cm^3\n\nConclusion:\nA silver bullet would have slightly inferior ballistics.\n\n\n\nMelting Point Lead\n327.5ºC\n\nMelting Point Silver\n962ºC\n\nConclusion:\nIt would be much more difficult to cast silver bullets.\n\n10 troy oz. 0.999 fine silver (10-40 bullets worth) ≈$150.00\n\nHardness is not really an issue as silver is harder than lead.
150739
Well, if it's made of lead, then the answer would be no. That's 1 for humans, 234,156,177... for Superman.
750866
The mineral with the metal in it is an ore. For example the mineral Galena is lead sulphide, from which lead is extracted.\nThis mineral will typically grow in quartz veins; these surrrounding minerals holding the ore are called "gangue" minerals.  But often the veins are so narrow you have to dig out a fair bit of the so-called country rock either side of the vein; this is "waste rock" or "mullock".\n\nSo although Galena is over half lead by weight, lead might only for m a few percent of the total material dug out.
816755
Pottasium, Sodium, Iron ,  Lead, Copper, Silver, Gold.
715971
Gold would be deposited on the surface of the lead.\n\n3Pb + 2Au(NO3)3 ---> 3Pb(NO3)2 + 2Au
137830
75000\n\nmg= 1E-3 grams\nug= 1E-6 grams
831216
Cu (s) + Pb(NO3)2 (aq) ---------> No Reaction. \nCopper will not replace lead.\n\nreaction VI in the attached link.
368567
You might be referring to brass, which has a density of 8.5 g/ml.\n\nBronze with 11% tin has a density of 8.1 g/ml.\n\n\nI would guess the brass, since it is more commonly used.
821643
Copper is more reactive than silver, hence displacement of silver occurs.\nCu (s) + 2AgNO3 (aq) --> 2Ag (s) + Cu(NO3)2 (aq)\n\nSum of the coefficients? 6...\n\nHope this helps :)
117425
Silver nitrate. \nThe Ag(+) is silver, and the NO3(-) is nitrate. \nDon't get this stuff on your hands; it stains!
482555
AgBr-------->Ag+ + Br-\n(a) Ksp=[Ag][Br] solubility=s=[Ag]=[Br]=Ksp^0.5\ns=(6*10^-7)^0.5\n(b) [Br]=0.01 (because all of kBr was dissuciated)\ns=Ksp/[Br]=(6*10^-7)/0.01 mol/lit
867590
Well, for a start your equation shows copper(II) sulphide, not sulphate, and your equation is wrong even then.  That makes a bit of a difference!\n\nLet us imagine that you've got the formula right, but the name wrong.\n\nThe equation is simply Cu + S ---> CuS\n\nThen 64g will give (64+32)g.\n\nThus 64g will give 96g.\n\nSo 64 x (200/96)g of Cu will give 200g of product.