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a gas in a balloon expands from 2l to 3l against 2 atm of pressure what is the change in temperature relative to the
a student weighs 2046 g of cu into a 250 ml beaker at the beginning of the experiment at the end of the experiment 1374
a student mixed a cobalt cloride solution with a potassium arsenate solution a solid was observed how many grams of
aluminium powder manganese lead iron zinc copper and tin are reacted with both hydrochloric acid and sulphuric acid
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a 350 g block of copper at 3500 degrees celcius is added to a beaker containing 525 g of water at 350 degrees celcius
a vessel w a tiny hole in its wall is filled w o2 to pressure of 1 atm at 25c in one minute period 325g of o effuses
a vessel with a tiny hole in its wall is filled with oxygen o2 to a pressure of 1 atm at 25oc in a one-minute period
how might you determine the concentration of a strong acid using a standard potassium thiosulfate solution potassium
explain the paramagnetic behaviour of oxygen on the basis of molecular orbital theory give reasons for a large
in this experiment you will be observing the chemical reaction that takes place when steel wool is exposed to oxygen
how is 18-electrone rule helpful in determining the number of metal-metal bonds in fe3co12 and co4co12 explain with
how is 18-electron rule helpful in determining the number of metal-metal bonds in fe3co12 and co4co12 explain with
a substance is a crystalline solid melting at 318 deg c is white odorless tasteless caustic astringent similar to the
in a particular reaction between copper metal and silver nitrate 127 g cu produced 381 g ag what is the percent yield
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a 100 ml sample of a 60 moll solution of h2so4 is diluted to a final volume of 500 ml what is the concentration of the
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the thermite reaction has been used to weld railroad rails make bombs and ignite solid rocket fuel the equation of the
if 1000 g of magnesium is reacted with 9575 g of copper ii sulphate magnesium sulphate and copper are formeda which
when lead 2 nitrate reacts with sodium iodide sodium nitrate and lead 2 iodide are formed if i start with 252 grams of
what is the relationship betweet concentration and volume in the formula ci vi cf vf what is the relationship between
a significant contribution to atmospheric carbon dioxide levels comes from the thermal decomposition of limestone in