1 Do what you're comfortable with and tip if you like the service or don't tip if you feel tipping an owner is ridiculous. 2  Switch stylists to someone who doesn't own the salon.  Accept that tipping is customary and add it into the cost of the service. If you can't afford the tip, switch to a less expensive stylist.
Standard Electrode Potentials. In an electrochemical cell, an electric potential is created between two dissimilar metals. This potential is a measure of the energy per unit charge which is available from the oxidation/reduction reactions to drive the reaction. It is customary to visualize the cell reaction in terms of two half-reactions, an oxidation half-reaction and a reduction half-reaction.
A non-ferrous metal is any metal that does not contain iron. Most of the time non-ferrous metals are a non-magnetic metal. If a magnet does not pull to the metal you are testing, it is a probably a non-ferrous metal. Non-ferrous metals are more valuable than ferrous metals and should be separated to get the most return for your metal. A couple of popular non-ferrous metals are copper, brass, and aluminum.