Which statement about concentration cells is correct?

a.
concentration cells have different electrodes.
b.
concentration cells have different solutions but with the same concentration level.
c.
concentration cells have high voltages when the concentration levels are the same.
d.
concentration cells have the same substance for both anode and cathode.

Substance x has a fixed volume, and the attraction between its particles is strong .substance y had widely spread out particles and can be compressed what can most likely be concluded about these substances

What type of energy do chemical bonds have? what type of energy is it converted to during chemical reactions? question 15 options: chemical bonds have kinetic energy, which is converted to potential energy during chemical reactions. chemical bonds have electric energy, which is converted to potential energy during chemical reactions. chemical bonds have heat energy, which is converted to kinetic energy during chemical reactions. chemical bonds have potential energy, which is converted to heat energy during chemical reactions.

How do you lengthen a pattern piece? (family and consumer science, sewing)