is when nick actually does his work
Carbon is a pure substance with the chemical symbol "C"
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.
calcium is an element, so it is the pure substance.. it is a grey/silver. calcium is an element, so it is the pure substance.. it is a grey/silver.
eggshell is a kind of compound CaCO3 (calcium carbonate)
Pure substance
Carbon is a pure substance with the chemical symbol "C"
Yes. Calcium oxide is a compound which is a type of 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.
calcium is an element, so it is the pure substance.. it is a grey/silver. calcium is an element, so it is the pure substance.. it is a grey/silver.
eggshell is a kind of compound CaCO3 (calcium carbonate)
Carbon monoxide (CO) is a pure substance.
Calcium is an element and therefore a pure substance.
Yes. Calcium oxide is a compound which is a type of pure substance.
Carbon dioxide (CO2) is a compound and can be also a pure substance.
Yes, it is pure carbon if it is flawless.
Pure substance
Carbon dioxide is a pure substance that is a compound.