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a,estimate the density of a sample of brass that contains 75% copper.
b.if you determined the density of a sample of brass to be 8.75 g/mL, what percentage of zinc does it contain?
solid ammonium carbonate nh4co2nh2 decomposes at 25 degrees c to ammonia and carbon dioxide.nbspthe equilbrium constant
A. Use the dipole moments of HF and HCl ( HF= 1.08 D, HCl = 1.82) together with the percent ionic character of each bond ( HF= 20% ionic, HCl= 45% ionic) to estimate the bond length in each molecule.
Explain how many grams of potassium and how many grams of sulfur are theoretically needed to make 85.00 grams of potassium sulfide?
Explain a sample contains both CO2 and Ne in unknown quantities. If the sample encloses a combined total of 1.85 mol and has a total mass of 73.4 g, define what are the percentages of CO2 and Ne in the sample by mass
how many kcals of heat energy would be required to vaporize 35 grams of h2o that demonstrated a temp. of 246
Consider the compound (Z)-3-hexene (B). Draw the bondline structures of the isomers of this compound in the manner requested. i) an isomer E that is the most reactive or reacts at the fastest rate during an addition reaction.
Your body needs a small amount of sodium ion, Na1+, which your body gets by consuming table salt, or NaCl. Explain what role Na1+ plays in your body and what happens if you get too much or too little. Also find five foods that are high in sodium a..
What is the new freezing point of a solution with 100.g of CaCl2 in every kg of water? The Kf of water is 1.86 degrees celsius/m. Solve the problem.
likely to exhibit a stable +2 oxidation state? What are their electronic configurations
Provide a method for seperating the mixtures of the compounds, dissolved in a solvent diethyl ether. In each case one of the components will be neutral compound. Give your answer in the form of flow chart.
The hydrosylation of polymer A is carried out in the presence the polymer forms a hard gel. if the price of pt is 44$ per gram and the sale price of the hardened polymer is 2000 per ton, what is teh min catalyst TON for an economiclly viable proce..
methanol is produced commercially by the catalyzed reaction of carbon monoxide and hydrogencog 2 h2g ch3ohgan
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