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Why is calcium carbonate a pure substance but not an element?
Calcium carbonate is a pure substance because it has a fixed composition of calcium and carbonate ions. However, it is not an element because it is a compound made up of multiple elements (calcium, carbon, and oxygen) chemically bonded together.
Is calcium a pure substance?
Yes. Calcium is an element, and it has the atomic number 20 and Ca is its chemical symbol. It is a metal, and one of the alkali earth metals which are the elements in Group 2 of the periodic table. It is reactive, and as such is not found free in nature, but always appears in compounds with other elements. Wikipedia has additional information, and a link is provided.
Is carbon a mixture or a pure substance?
Carbon is a pure substance with the chemical symbol "C"
Is calcium carbonate a homogeneous or heterogeneous mixture?
Calcium carbonate is a homogeneous mixture because it is a compound composed of calcium, carbon, and oxygen atoms that are uniformly distributed throughout the substance.
Is eggshell a mixture or a pure substance?
Eggshell is a mixture. It is composed of various compounds such as calcium carbonate, proteins, and water.
Why is calcium carbonate a pure substance but not an element?
Calcium carbonate is a pure substance because it has a fixed composition of calcium and carbonate ions. However, it is not an element because it is a compound made up of multiple elements (calcium, carbon, and oxygen) chemically bonded together.
Is calcium a pure substance?
Yes. Calcium is an element, and it has the atomic number 20 and Ca is its chemical symbol. It is a metal, and one of the alkali earth metals which are the elements in Group 2 of the periodic table. It is reactive, and as such is not found free in nature, but always appears in compounds with other elements. Wikipedia has additional information, and a link is provided.
Is calcium oxide is a pure substance?
Yes. Calcium oxide is a compound which is a type of pure substance.
Is calcuim a mixture or pure substance?
Calcium is an element and therefore a pure substance.
Is carbon a mixture or a pure substance?
Carbon is a pure substance with the chemical symbol "C"
Is calcium oxide a pure substances?
Yes. Calcium oxide is a compound which is a type of pure substance.
Is carbon dioxide a pure substance or a compound?
Carbon dioxide (CO2) is a compound and can be also a pure substance.
Is a diamond carbon a pure substance?
Yes, it is pure carbon if it is flawless.
A single kind of matter that is pure and has a specific set of properties?
a substance
Is calcium carbonate a homogeneous or heterogeneous mixture?
Calcium carbonate is a homogeneous mixture because it is a compound composed of calcium, carbon, and oxygen atoms that are uniformly distributed throughout the substance.
How is Carbon Dioxide a substance?
Carbon dioxide is a pure substance that is a compound.
Is CaCl2 a pure substance or mixture?
CaCl2 is a pure substance. It is a compound made of calcium and chlorine in a fixed ratio.
