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Elements and Compounds

Do the properties of elements change when combined to form compounds?

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2017-10-15 07:57:40
2017-10-15 07:57:40

The chemical properties of atoms are significantly changed when they form compounds.

When elements combine to form compounds it is called a chemical reaction.

The compound is then a collection of molecules and each molecule has in it atoms from the elements used in the formation.

The atoms in the molecule are still the same atoms as one started with, but the arrangement of the electrons in the atoms has changed. It is the electronic properties of atoms and molecules that really determine the properties they have and which chemical reactions occur and which do not.

The chemical properties of an atom or molecule are determined by the arrangement of the electrons of that atom or molecule. Once atoms have gone through a chemical reaction, the electronic structure is changed. The atoms are the same identity, but the properties of the atoms have been changed by the chemical reaction.

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Related Questions


Because they are combined with other elements and form compounds.

Almost all elements can be combined into compounds, for example water=h20 steel=iron and carbon. Their properties usually change. For example when carbon is added to iron to make steel, it becomes stronger and more durable. Humans use compounds to our advantage, adding various elements to materials to make them water proof, stronger, more flexible, harder e.g

What compounds Change the properties of glass?

Compound change is 2 or more elements are chemically combined together and forms different properties(or not).

MIXTURESCombination of two or more substances that are not chemically combinedNo new substance formedDo not exist in fixed proportions to each otherThey just mixMost natural substances are mixturesCan be physically separated into pure compounds or elementsCan be separated by mechanical meansPhysical properties can changeAny combination of solid, liquid or gas can be a simple mixtureMIXTURES MAY BE HOMOGENEOUS OR HETEROGENEOUSCOMPOUNDSA pure compound has the same elements and the same amount of elements all of the timeElements are chemically combinedCompound properties are different from the properties of the elementsThey cannot be separated physicallyPhysical properties such as boiling point or melting point of pure substances are do not changea compound will be two elements chemically bonded to each other a mixture can be two or more different compounds (or elements) in an area (i.e a beaker, the atmosphere)

They change their properties when they combine. Hydrogen and oxygen are gases but combine to form water, a liquid.

Because there is no chemical reaction, the properties of the elements and compounds do not change when they form a mixture.

Chemical properties of matter describes its "potential" to undergo some chemical change or reaction by virtue of its composition. What elements, electrons, and bonding are present to give the potential for chemical change. Chemical change results in one or more substances of entirely different composition from the original substances. The elements and/or compounds at the start of the reaction are rearranged into new product compounds or elements. A CHEMICAL CHANGE alters the composition of the original matter. Different elements or compounds are present at the end of the chemical change. The atoms in compounds are rearranged to make new and different compounds.

Hydrogen (H2) and Oxygen (O2) have both 0. In the combined compound H20 or water (by combustion), H has (+1) and O has (-2). The biological relevance is seen in e.g. Knallgas-bacteria.

The chemical properties of atoms are significantly changed when they form compounds. When elements combine to form compounds it is called a chemical reaction. The compound is then a collection of molecules and each molecule has are still the same atoms as one started with, but the arrangement of the electrons in the atoms has changed.

The act of bonding repositions the electrons, which changes the base properties of the united molecule. It is for this reason, for example, that oxygen O2 has different properties than ozone O3 even though both compounds only have the element of oxygen.

When elements combine to form compounds than the properties of elements are not pre demoninantly the same in them whether chemical or physical while in the form of mixture elements retain their properties.

Made of elements compounds, or both No change in oringinal properties of components Seperated by physical means Formed using any ratio of components

The conversion of compounds into elements is a chemical change. A chemical change involves the breaking of bonds between atoms.

A compound consists of two or more elements chemically combined together and as such, compounds cannot be separated by physical change or means.

no because they arent chemically combined

The answer to, ' when repeating chemical and physical properties of elements change periodically with the elements' atomic numbers it is called the?'Periodic law, is the answer. PERIODIC LAW !orPeriodicity of the chemical elements properties.

Elements (such as oxygen and carbon) cannot be decomposed by a chemical change. Only compounds can be decomposed by a chemical change, becoming simpler compounds or single elements.

Two or more elements turning into compounds is a chemical reaction

In a mixture the properties of the components are not changed.

No. A period is a row of elements in the periodic table who's properties change gradually and predictably

Yes,mixing with other compounds can change the properties of a substance. The melting point, boiling point changes. Chemical properties are also can be changed.


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