Robitussin Cough and Cold is an over the counter cough suppressant, expectorant and nasal decongestant. This multi-symptom medication helps relieve cough and cold symptoms. Dextromethorphan HBr 10mg (cough suppressant) Guafenisen 100mg (expectorant)
Mixture; Metal; Element; Crystal. In its scientific usage, the term metal means a metallic element. An alloy is a mixture or solid solution composed of a metal and another element. But in everyday language, we often use the word metal to describe what an alloy is. That is because a mixture of metallic elements is called an alloy. Iron is a metal element. Steel is a mixture of iron with other elements such as carbon, nickel, chromium, etc. and so is an alloy. An alloy is a mixture of either pure or relatively pure chemical elements, forming an impure substance retaining the characteristics of a metal. Alloy constituents are usually measured by mass.
 A mixture is a combination of compounds or elements that are not  chemically bonded and do not react with each other, while a  compound is when two or more elements or co â¦ mpounds are chemically  bonded with each other to produce a new substance.The constituents of a compound can be separated only by  chemical methods.     Mixtures    Mixtures are impure substances.  They are made up of two or more substances mixed  physically.  The constituents of a mixture are present in varying  ratios.