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Carbon DiOxide (CO2) is a molecule, which is made up of two different elements.

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Water is a compound of two elements: Hydrogen and Oxygen.

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a mixture

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water

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Aluminum

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Q: What one of these substances is not an element water aluminum hydrogen or iron?
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Related questions

Name two substances in which the element hydrogen is present?

Hydrogen can be found in water and air.


Can water and helium be coverted in oxygen?

No. Helium does not react with anything and oxygen is an element: you cannot get an element by combining substances. You can, however, split water apart into hydrogen and oxygen.


Were is the element hydrogen found?

Everywhere! Hydrogen is in water!


Is distilled water a element compound or mixture?

Distilled (pure) water is a compound; it is composed solely of H2O molecules, with no other substances present.


Why non polar bonds do not like water?

Actually, water, by hydrogen bonding with itself and not the nonpolar substances excludes the nonpolar substances from hydrogen bonding and turns them into associations with each other. Natural water can hydrogen bond with many polar and charged substances.


Is hydorgen an element mixture or a compound?

Hydrogen* is neither a mixture nor a compound it is a basic element. Compounds are combinations of elements such as H20 (water molecule and 2 oxygen molecules) and mixtures are combinations of substances such as mixing oil and water.


Which element combines with Hydrogen to form water?

Hydrogen. 2 hydrogens to be exact


Is an element a substance that increase OH- when added to H2O?

No. The more reactive metals do displace hydrogen. Bases are substances that when adde to water increase the concentration of OH-


Is hydrogen water?

No, hydrogen is an element. It is one of the components of water, the other being oxygen.


Which is not an element water oygen carbon chlorine or hydrogen?

Water, which is a compound of hydrogen and oxygen.


What is the relative concentration of dissolved substances in water?

hydrogen


What is the most common element in coffee?

Coffee is mostly water, H2O. Of water, hydrogen is the most common element, so hydrogen in the most common element in coffee.