Answer:
Passivation of Oxide layers of the metals.
Explanation:
Passivation is a non-electrolytic finishing process that makes most metals rust-resistant. The prosses removes free iron from the surface by using either nitric or citric acid. When this happens, it results to an inert, protective oxide layer that is very slow or less likely to chemically react with air and cause corrosion.
Passivity caused many of the metals several minutes to begin to react. Once the finishing process that makes metals less likely to react was eroded, reaction was initiated vigorously.
Spanish System is not the name of a measurement system
WHAT IS MEASUREMENT SYSTEM?
- Measurement system are standard systems that are made up of collection is of units of measurement and guiding rules.
- Measurement system relates numerical values to physical quantities. There are three major system of measurements in use, they are:
- The international system of units (S.I units)
- The British imperial system
Hence, Spanish System is not one of the names of measurement of systems.
Learn more: brainly.com/question/13517246?referrer=searchResults
Answer:
You can see that it is an endothermic reaction or heat is being absorbed for the change from magnesium to magnesium oxide. So it is an endothermic reaction. So these are the four reasons why we can say that burning of magnesium ribbon in the air is considered a chemical change.
Explanation:
hope it help