Which term refers to an electrochemical cell that uses a spontaneous redox reaction to produce an electric current?

electrolyte

voltaic cell

electrolytic cell

cathode

Fluorine gas is placed in contact with calcium metal at high temperatures to produce calcium fluoride powder. What is the formula equation for this reaction?

What is a crack in Earths crust along which eathquakes occur?

What is the main purpose of the international space station?

Hot tubs generally contain water at a temperature of 38°C to keep the water clean several solid solute's are dissolved in the water. Many hot tub manufacturers warn that if the water gets too cold it will get cloudy and Fill with a fine solid why?

Melting ice is an example of which of the following? Question 1 options: endothermic reaction exothermic reaction isothermic reaction chemical reaction

Which of the following precautions is important when using a Bunsen burner or Meker burner? a. Set up your work space so that wires and cables cannot accidentally make contact with the flame or hot glassware and meltb.

What explains the fact that no machine is 100 percent efficient? A. Friction transforms mechanical energy into thermal energy. B. Thermal energy is transformed into mechanical energy by friction. C.

For each example of a phase change, identify whether heat is absorbed from the surroundings or released into the surroundings. A popsicle melts on a hot day. Rubbing alcohol evaporates from the surface of the skin.

How are scientific questions answered?

How much heat is required to increase the temperature of 100.0 grams of iron from 15.0oC to 40.2oC? (The specific heat of iron is 0.46 J/g xoC).