it is both the heating of the glue mixture is chemical while the lumpiness and the color and it becoming more of a liquid is physical
Yes, a glue gun melting glue is an example of a physical change because the glue changes from a solid to a liquid without undergoing any chemical reaction.
Glue undergoing the process of drying and hardening is a physical change since its composition remains the same. When glue interacts with surfaces to form bonds, it is considered a chemical change as new substances are created.
Chemical - reaction occurs when two components mix (ex. Acrylic polymers + polyurethane resins) or when external sources cause the reaction (i.e. heat or moisture). The physical nature of the components doesn't change, but chemically, a bond is formed.
Drying of fevicol is a chemical change obviously !! Its because we cannot bring back the original properties of fevicol whatsoever we do to it !!! ---------------------------------------------------- But evaporation of solvents is a physical process.
When you mix borax solution with glue, a chemical reaction occurs where the borax molecules crosslink the polymer chains in the glue. This leads to the formation of a new substance with different properties compared to the original glue and borax solution, constituting a chemical change.
Making glue is a chemical process.
Yes, a glue gun melting glue is an example of a physical change because the glue changes from a solid to a liquid without undergoing any chemical reaction.
Glue undergoing the process of drying and hardening is a physical change since its composition remains the same. When glue interacts with surfaces to form bonds, it is considered a chemical change as new substances are created.
Using a hot glue gun involves a physical change. The process of heating the glue stick causes it to melt and then harden when it cools down, which is a reversible change that does not alter the chemical composition of the glue.
Yes, the melting of a glue stick by a glue gun is a physical change. This is because only the physical state of the glue stick changes from solid to liquid, but its chemical composition remains the same.
No, mixing Elmer's glue and liquid starch is a physical change. A chemical change involves the formation of new substances with different chemical properties, while mixing these two substances does not result in a chemical reaction.
Chemical - reaction occurs when two components mix (ex. Acrylic polymers + polyurethane resins) or when external sources cause the reaction (i.e. heat or moisture). The physical nature of the components doesn't change, but chemically, a bond is formed.
Different for different adhesives. Hotglue for instance is merely a physical change while a 2-component epoxy glue undergoes a chemical change.
You can't glue together a divided pear,if you want it to be valuable but it is not a chemical change..why?-The reason is that a chemical change is followed by entirely new product and what you have done is to seperate the pear molecules,it is still a pear!,and it is a physical change,and you are free to ask more question,because I understand that a pear has life..
yes
Physical change because it is a solid to liquid. No change in the substance.
Drying of fevicol is a chemical change obviously !! Its because we cannot bring back the original properties of fevicol whatsoever we do to it !!! ---------------------------------------------------- But evaporation of solvents is a physical process.