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consider two cells the first with al and ag electrodes and the second with zn and ni electrodes each in appropriate 100
to prepare a sample of hydrogen gas a student reacts 1478 grams of zinc with acidzns 2h zn 2 h2 gthe hydrogen is
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a manufacturer of bicycles has 50 wheels 30 frames and 24 seatsa how many bicycles can be manufactured using these
discussion topic understanding microbiologyif you were to explain the field of microbiology to a high school
automotive air bags inflate when sodium azide nan3 rapidly decomposes to its component elements2nan3 s rightarrow 2na s
a balloon has a mass of 05 g when completely deflated when it is filled with an unknown gas the mass increases to 17 g
a piece of an unknown substance weighing 1240 is heated in boiling water to 100 degrees celsius when the substance is
the rate constant for a certain chemical reaction is 000250 l mol -1 s-1 at 250 degc and 00125 l mol-1 s-1 at 500 degc
what is a thiol what functional group determines a thiol and what is its distinctive
what is the amount of heat in kilojoules required to convert 2810 g of ice at -152degc to liquid water at 356degc the
when hydrogen sulfide gas is bubbled into a solution of sodium hydroxide the reaction forms sodium sulfide and waterhow
1 examine the naming structural formula and uses of halogenated hydrocarbons provide some examples2 examine the naming
calculate the chemical exergy of propane gas c3h8 use totref amp popref and yco2 00003 yh2o 00312
a 100 ml sample of water is taken from the pacific ocean and the water is allowed to evaporate the salts that remain
barium sulfate is swallowed to enhance the contrast of x-ray images of the gastrointestinal tract1 calculate the
mastering chemistry final exam calculate the ph of a solution prepared by dissolving 0250 mol of benzoic acid c7h5o2h
a mixture of 200 moles of h2 300 moles of nh3 400 moles of co2 and 500 moles of n2 exerts a total pressure of 800 torr
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question 1a sample of gas at 310 kelvin and 12 atmospheres has a density of 278 gl what is the molar mass of this gas
what is the ph of a solution made by mixing 1000 ml of 010 m hno3 500 ml of 020 m hcl and 1000 ml of water assume that