Yes, it is true; the ion chloride is corrosive.
acid
Sound travels faster in water than it does in air. It travels even faster in metals.
A nickel would rust faster in hot water compared to cold water because the higher temperature accelerates the chemical reactions involved in the rusting process. Warm environments generally promote faster oxidation and corrosion of metals.
A nail would probably rust faster in fresh water because rusting, also called oxidation occurs when large amounts of oxygen are forced into the metals pores, causing it to turn brittle.
it would be faster
it is salt water because there is more oxagan in salt water then fresh water
It doesnt. salt water usually rusts metals faster because of the mixture of salt, water and oxygen that rusts the metal, but tap water has less oxygen and no salt.
Most metals do not react with water, especially at room temperature. It is easier to state which metals DO react with water. Those would be Li, K, Sr, Ca and Na. Those reacting with hot water (steam) would be Mg, Al, Zn and Cu. Most other metals do NOT react with water.
salt water, as the salt water eats away at the coin faster.
Hot water. Metals become more malleable at greater temperatures.
All metals, if they do react with water at all, react faster in steam than in water. However, the metals that react SLOWLY with cold water are the metals from Group-IIA(Magnesium, Calcium, etc).
All metals will corrode faster in salt water than in tap water. Corrosion involves the movement of ions and electrons. Having extra ions in the water (salty water has sodium and chlorine ions) speeds this up.