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cement is a mixture of compounds and concrete is a compound made from cement. look it up in wikipedia
Concrete is a composite construction material, composed of cement (commonly Portland cement) and other cementitious materials such as fly ash and slag cement, aggregate (generally a coarse aggregate made of gravel or crushed rocks such as limestone, or granite, plus a fine aggregate such as sand), water and chemical admixtures.
That depends on what is being mixed together. Two examples of this are: If you mix sand, gravel, and water it is reversible and you can separate the mixture back to its original three parts. If you mix sand, gravel, water, and cement powder it is not reversible as the water will react with the cement powder creating liquid cement and the sand and gravel will form concrete with the liquid cement. After a few hours the liquid cement in the concrete will set and the concrete mixture will become as hard as rock. It is now no longer possible to separate the mixture back to its original four parts.
Sodium chloride is a polar compound as water.
Cement is not a solution.
cement is a compound because you cannot see all the parts. :)
Yes, Portland cement rocks, sand, and water are indeed a compound.
yesFalse. It is a mixture.
Cement itself in inorganic. However some additives and hardeners mixed with cement are polymers, which are organic.
It is a mixture
cement is a mixture of compounds and concrete is a compound made from cement. look it up in wikipedia
no reason
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They proroduce thier to protect the eggs from predators
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Concrete is a composite construction material, composed of cement (commonly Portland cement) and other cementitious materials such as fly ash and slag cement, aggregate (generally a coarse aggregate made of gravel or crushed rocks such as limestone, or granite, plus a fine aggregate such as sand), water and chemical admixtures.
The very basic chemical compound of cement is Calcium Hydroxide. The calcium hydroxide is mixed with water and the carbon dioxide in the air acts on it to harden it.