Which of the following industrial processes involves a voltaic cell rather than electrolysis? coating forks and knives with silver ?

extracting sodium from sodium hydroxide ?

reinforcing the hull of a ship so that it resists corrosion ?

converting energy stored in chemical bonds to electricity ?

When the volume and number of particles of a gas are constant which of the following is also constant

Main expenses you plan on making payments on a new car too. you want to spend 15% of your monthly net pay on the car payment, insurance, registration, and taxes combined. what is your monthly car allowance? $149.46 $298.91 $448.37 $597.83

Before it was launched, a helium-filled balloon had a pressure of 201 kpa at a temperature of 27°c. at an altitude of 15,000 m, the pressure had decreased to 2.5 kpa and the temperature had dropped to -14 °c. the volume of the balloon increased to 59.3 m3. what is the original volume of the balloon? 13 m3 0.85 m3 0.077 m3 1.17 m3