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find the composition in weight percent wt of the copper in an aluminum-copper alloy that consists of 114x101 at
using the following aqueous solutions 010m na3po4nbsp035m nacl 020m mgcl2 015m c6h12o6015m ch3choohwhat is the i value
the densities of ethylene glycol water and wood alcohol are 111 gml 100 gml and 079 gml respectively suppose an object
the reactionnbspc2h5cng-----gtnbspch2chcngnbsph2gnbspis first order in an experiment the rate constant is determined to
a balloon filled with helium gas is found to take 6 hours to deflate to 50 of its original volume how long will it take
you have sold 30 moles of calcium carbonate how many moles of calcium chloride would you need to produce the calcium
the rate constant of the elementary reactionnbspnoclg nbspno2gnbsp-----gtclno2g nbspnogisnbsp0527nbspl
rank the following elements in order of decreasing atomic size barium boron cesium fluorine and
when 250 ml of 05 m hcl is added to 300 ml of 04 m naoh in a coffee calorimeter at 27degc the temperature rises to
in precipitation after 3ml of calcium acetate solution is added to 10ml of sodium fluoride what will be the reaction of
a layer of copper welded to the bottom of a skillet weighs 159 g how much heat in j is needed to raise the temperature
ammonium phosphate nh43po4 is an important ingredient in many fertilizers it can be made by reacting phosphoric acid
in a reaction involving ironfe and oxygeno it was determined that 4166 grams of iron reacted with 1803 grams of oxygen
anbsp500l tank atnbsp462degc is filled withnbsp410g of boron trifluoride gas andnbsp604 g of carbon dioxide gas you can
ammonia nh3 chemically reacts with oxygen gas o2 to produce nitric oxide no and water h2o what mass of nitric oxide is
a 700 l tank at 286degc is filled with 182g of carbon dioxide gas and 497g of carbon monoxide gas you can assume both
need a balanced equation of chloromethylbenzene c6h5ch3clnbsp kmno4 mno2 need this to find the theoretical yield for
why does the atoms or molecules oscillate and vibrate about a fixed point in a solid
7134 g of a non-volatile solute is dissolved in 2550 g of waternbspthe solute does not react with water nor dissociate
1 the equilibrium concentrations in a gas mixture at a particular temperature are 013 mh2 070 m i2 and 21 hi what
anbsp500 lnbsptank atnbsp134degc is filled withnbsp894 g of carbon monoxide gas andnbsp441g of sulfur hexafluoride gas
a 900l tank at 180degc is filled with 385g of boron trifluoride gas and 132g of sulfur tetrafluoride gas you can assume
questions -question 1 - the elements in a column of the periodic table are known asmetalloidsa periodnoble gasa
question - an oligopeptide with the sequence a-p-c-k-r was obtained from blood plasmaa how many moles of naoh would be
question - what is the difference between isomers and epimers what is an example of each during digestion disaccharides