Consider these two entries from a fictional table of standard reduction potentials. X3++3e−⟶X(s)o=−1.95 V

Y3++3e−⟶Y(s)o=−0.19 V

What is the standard potential of a galvanic (voltaic) cell where X is the anode and Y is the cathode?

Identify the electromagnets with poles that are reversed from the electromagnet shown above

A50.0g sample of liquid water at 0.0 c ends up as ice at -20.0 c. how much energy is involved in this change?

Large helium-filled balloons are used to lift scientific equipment to high altitudes. what is the pressure inside such a balloon if it starts out at sea level with a temperature of 10.0ºc and rises to an altitude where its volume is twenty times the original volume and its temperature is – 50.0ºc ?