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Because it is not a physical change it is a chemical change.

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13y ago

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How can you tell that the product of the reaction is different from the iron that began the reaction?

The product of the reaction can be identified as different from the original iron by observing changes in physical and chemical properties. For example, the product may exhibit a different color, texture, or state (solid, liquid, gas) compared to the metallic iron. Additionally, chemical tests can reveal new properties, such as reactivity or solubility, that were not present in the initial iron. These changes indicate that a chemical transformation has occurred, resulting in a substance distinct from the original iron.


Why is a nail rusting a chemical change?

Yes, because the chemical reaction of rust is next to impossible to get the iron, water and oxygen back from the iron oxide it creates by rusting, and its like baking a cake is a chemical reaction, once the cake is a cake you can't get the eggs or sugar back. The rust also makes the nails weak and flimsy, this is why we shouldn't use nails if they are rusted, especially large structures. A way you can tell its a chemical reaction is that the color changes and the appearance changes.


What will tell you the efficiency of a chemical reaction?

You need to calculate the yield of the reaction.


How can you tell the difference between a chemical reaction and not a chemical reaction?

A chemical reaction will do the following; Change colour Create smoke A non chemical reaction (Physical Reaction) will do the following; Change State Be able to change back to the original materials


What can chemical equations tell you about a chemical reactions?

Chemical equations describe the products and reactants in a chemical reaction.


How might a thermometer help you decide if there was any chemical change on mixing iron and charcoal?

For a chemical change to occur, there must be a chemical reaction. A chemical reaction would be either endothermic (uses energy, mostly heat), or exothermic (produces energy, again mostly heat). Any change in temperature of the reactants, as measured by a thermometer, will tell you not only ifa chemical reaction occurred, but also which kind of chemical reaction. No temperature change usually indicates that no reaction has occurred, a decrease in temperature would indicate an endothermic reaction, while an increase in temperature would indicate an exothermic reaction.


How can you tell when a chemical has reacted?

You can tell when a chemical reaction has occurred by observing changes in color, temperature, formation of a gas, or the formation of a precipitate. Additionally, a chemical reaction often involves the breaking and forming of bonds between atoms, resulting in the rearrangement of molecules.


What are the energy transfers in the iron and sulfur reaction?

i dont know u tell me


How can you tell fools gold from gold by using a chemical reaction?

With magnets.


How can you tell a chemical reaction is losing heat?

The apparatus becomes hot.


How can one tell how much reactant will be used in a reaction?

from a balanced chemical equation


How do you tell how fast a chemical reaction will take?

Only after the measurement of the reaction rate. See the link below for details.