Fluoride F Fluoride Ca 2 S0,2 Sulfate Calciuni Ara p3 Phosphide Aluminum Al* Aluminum Lithium Chloride Na Sodium s2 Sulfide NH+ Ammonium Cu** Copper(1) N Lithium Br Fett Bror Iron(1) 02 Oxide Nitride Bromide K" Potassium Mg2 Cu*2 Copper(II) Na** Magnesium 02 Oxide Na Sodium Sodium OH1 Hydroxide K Potassium CH Chloride Lithium Mg Magnesium PO Sr2 Strontium Iron(11) Phosphate Activat Go to Set KE lodide Potassium what categories of ions are there
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Hot air balloons float in the air because of the difference in density between cold and hot air. in this problem, you will estimate the minimum temperature the gas inside the balloon needs to be, for it to take off. to do this, use the following variables and make these assumptions: the combined weight of the pilot basket together with that of the balloon fabric and other equipment is w. the volume of the hot air inside the balloon when it is inflated is v. the absolute temperature of the hot air at the bottom of the balloon is th (where th> tc). the absolute temperature of the cold air outside the balloon is tc and its density is ďc. the balloon is open at the bottom, so that the pressure inside and outside the balloon is the same. as always, treat air as an ideal gas. use g for the magnitude of the acceleration due to gravity.

Match the acid base pairs by arranging the acid name with the conjugate base formula. hydrogen carbonate hydrogen phosphate carbonic acid read water sulfuric acid phosphoric acid a. co32- b. hso4- c. hco3- d. po43- e. h2po4- f. oh-

Which statement can best be concluded from the ideal gas law?