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7. what temperature is need to just dissolve 50 g of nh4cl in 75 g of water? '
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Modern weaponry has increased the number of deaths in wars and violent conflicts.
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In the reaction h2co3 (aq) + 3nh3 (aq) = 2 nh4+ (aq) + co3 2-, how many electrons are transferred?
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What is the pressure of 0.500 moles of carbon dioxide gas in a 2.5 l tank and at a temperature of 301 k? (r=0.0821 lΒ·atm/molΒ·k) 3.08 atm 1.2 atm 0.23 atm 4.01 atm 4.94 atm
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In which of the following pairs do both numbers contain the same number or significant figures 0.005...
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