0
What else can I help you with?
Is mixing cement and water reversible?
Portland cement (and the concrete, mortar, thin set, or other masonry product made from it) doesn't dry. Rather, it cures by a chemical reaction initiated by putting water in it. The reaction is irreversible; hence, adding water to cement is an irreversible change.
Why is cement not reversible after mixing with water?
Cement undergoes a chemical reaction called hydration when it is mixed with water, forming a hard and strong material. This reaction creates new compounds that cannot be reversed back into their original state through simple drying or evaporation. Once cement has fully cured, the bond created between the water and cement particles is permanent.
Is mixing alka seltzer and water a reversible or irreversible change?
Mixing Alka-Seltzer and water is a reversible change because it can be undone by allowing the water to evaporate, leaving behind the original substances in their initial forms.
When mixing to make concrete what do you add to the mix last sand water or cement mix?
The water should be added last. All the aggregate materials and the cement should be thoroughly mixed before the water is added.
Is mixing water and alcohol a physical or chemical change?
Take this as a note. A mixture is always a physical change, as you can simply evaporate the water and have Urea again. Chemical change always involves the changing of reaction properties amongst its reactants.
Is mixing cement and water reversible?
Portland cement (and the concrete, mortar, thin set, or other masonry product made from it) doesn't dry. Rather, it cures by a chemical reaction initiated by putting water in it. The reaction is irreversible; hence, adding water to cement is an irreversible change.
Why is cement not reversible after mixing with water?
Cement undergoes a chemical reaction called hydration when it is mixed with water, forming a hard and strong material. This reaction creates new compounds that cannot be reversed back into their original state through simple drying or evaporation. Once cement has fully cured, the bond created between the water and cement particles is permanent.
Is mixing flour and water is reversible or irreversible?
no
Is mixing alka seltzer and water a reversible or irreversible change?
Mixing Alka-Seltzer and water is a reversible change because it can be undone by allowing the water to evaporate, leaving behind the original substances in their initial forms.
Is adding cement to water irreversible?
It is impossible to reverse.
Mixing sugar and water is reversible or irreversible?
Sugar and Salt
Is adding water to cement irreversible or revirsible?
If you have added too much water to your mix just add more sand and cement ;but do this right away.
Is mixing salt and water a reversible or irreversible?
It is reversible. You can allow the water to evaporate, leaving the salt behind.
Concrete can be made by mixing water with sand crushed stone and?
A. Cement
Concrete can be made by mixing water with sand crushed stone and what?
cement
When mixing to make concrete what do you add to the mix last sand water or cement mix?
The water should be added last. All the aggregate materials and the cement should be thoroughly mixed before the water is added.
What effect has the quantity of mixing water have upon the quality of concrete?
the strength of concrete is effected by water /cement ratio as the water/cement ratio increases the strength of the concrete decreases
