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Yes because no samples are exactly the same.
Wiki User
∙ 13y ago
Wiki User
∙ 10y agothey contain the same elements in the same ratio.
Wiki User
∙ 12y agoNo: A constant composition is part of the definition of a compound.
Wiki User
∙ 14y agoEach compound is always made of the same elements in the same proportions.
Wiki User
∙ 14y agoNo, from (a sample of) one pure compound the composition can ONLY change by chemical reaction: that what chemistry is all about.
Wiki User
∙ 13y agoNo, compounds have definite compositions.
Mixtures have variable compositions.
Wiki User
∙ 13y agoIf you mean "does the same compound always have the same formula" then the answer is yes.
If you mean "do all compounds have the same formula" then the answer is no.
Wiki User
∙ 11y agoNo
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A compound is composed of one or more combined in fixed ratios?
Intermetallic compounds consist of atoma of two or more combined together in proportions.
Why do elements join to form compounds in specific ratios?
Elements combine according to the electrons in their outer shell. These allow only certain combinations which form a ratio. Oxygen has 2 + in its outer shell. Hydrogen has 1 - in its outer shell. So the ratio is always 2:1.
Do elements always combine in specific ratios?
The Law of Definite Proportions says that a given chemical compound always contains the same proportion by mass of its constituent elements. This is NOT the same as saying that elements always combine in a specific ratio, because they can combine in different ratios in different compounds. An example of this might be copper oxide which can be CuO or Cu2O, showing a different ratio of copper to oxygen. So, the answer to the question, as asked, is no, elements do not always combine in specific ratios.
Does a jar with sulfur and iron in it contain a compound?
Yes, because sulfur and iron are both elements and in order to have a compound you must have two or more elements combined in a fixed ratio.
How does the total number of elements compare to the total number of compounds?
There are a bit more than 100 elements however there are far, far more than 100 millions compounds, each day more compounds are produced, there are a lot of compounds with unknown structure, not having official names. So the ratio is much bigger than 1 to a million
What type of matter is made of elements in a specific ratio that is always the same?
Elements combined in specific ratios form compounds.
A compound is composed of one or more combined in fixed ratios?
Intermetallic compounds consist of atoma of two or more combined together in proportions.
What is the meaning of empirical formula?
Simplest atomic ratio of the elements present in the compounds.
Why do elements join to form compounds in specific ratios?
Elements combine according to the electrons in their outer shell. These allow only certain combinations which form a ratio. Oxygen has 2 + in its outer shell. Hydrogen has 1 - in its outer shell. So the ratio is always 2:1.
What is the exact meaning of Empirical formula?
Simplest atomic ratio of the elements present in the compounds.
Does CO2 and SO2 have the same empirical formula?
No, Compounds with the same empirical formula have the same elements in the same ratio. SO2 and CO2 contain different elements. SO2 is a compound of sulfur and oxygen while CO2 is a compound of carbon and oxygen.
What are molecular addition compounds?
the compounds which contain two or more simple compounds that can be packed in a definite ratio into a crystal. A dot is used to separate the compounds in the formula.Like ZnSO4.H2O
Are compounds of the element?
The elements of a compound are the chemical bonds that are present in a specific ratio in a compound. Elements are pure chemical substances that are made of the same atom.
Why are elements and compounds pure substances while a homogeneous mixture is not?
Well, elements and compounds are pure substances. This is because the atoms in an elements are of one type only. Thus making it pure. But in a compound, the ratio of the masses of the combining elements or compounds are fixed. For example, the ratio for hydrogen and oxygen to combine together to form water is 1:8. Therefore the compound is also a pure substance. But homogenous mixtures are not pure substances as the components can be mixed in any ratio. We can make brine solution by mixing any amount of salt and water. There is no fixed ratio. So homogenous mixtures are not pure.
Why are elements and compounds are pure substances and homogeneous mixture are not?
Well, elements and compounds are pure substances. This is because the atoms in an elements are of one type only. Thus making it pure. But in a compound, the ratio of the masses of the combining elements or compounds are fixed. For example, the ratio for hydrogen and oxygen to combine together to form water is 1:8. Therefore the compound is also a pure substance. But homogenous mixtures are not pure substances as the components can be mixed in any ratio. We can make brine solution by mixing any amount of salt and water. There is no fixed ratio. So homogenous mixtures are not pure.
Why is the ratio of hydrogen to oxygen not always 21?
The ratio 2:1 is only for Water, H2O, but there are compounds such as H2O2 (Hydrogen Peroxide) which has ratio 1:1.
Why are compounds more common than pure elements?
Elements can only get so big before it becomes impossible to make more, but each element can be used in many different ways to form multiple compounds, so there will always be more componuds than elements. For example, carbon and hydrogen can form millions of compounds just by themselves (potentially an unlimited number); adding just a single oxygen atom squares that number. So with two elements we can already create more compounds.
