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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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Do the properties of elements change when combined to form compounds true or false?
no they dont chane
Do compounds containing iron and copper look like the elements iron and copper?
Compounds containing iron and copper do not typically resemble the pure elements in their metallic form. When combined in compounds, the properties and appearance of the elements change due to their chemical bonding with other elements.
When elements are combined to form compounds do their properties change?
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
Elements combined to form compounds is a chemical change?
Yes, the combination of different elements to form compounds involves a chemical reaction, which is a type of chemical change. This process typically involves the breaking and forming of chemical bonds between the atoms of various elements to create new substances with different properties.
Do different compounds found together but not combined chemically make up an element?
No, different compounds found together but not chemically combined do not make up an element. An element is defined as a pure substance that consists of only one type of atom, characterized by its atomic number. Compounds are formed from two or more elements that are chemically bonded together. Therefore, a mixture of compounds does not change the fundamental nature of the individual elements present.
Who decided that atoms do not change when chemical combined into compounds?
Jesus Christ
How do physical and chemical property's change when element becomes a compound or a mixture?
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.
When elements combine to form compounds is this a physical or chemical change?
This is a chemical change.
What is the name of the two compounds whose elements properties change when they are combined?
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.
What type of matter that cannot be separated by physical change?
A substance that cannot be separated by physical change is a pure substance. This includes elements and compounds. In a pure substance, the individual components are chemically combined, making it impossible to separate them without a chemical reaction.
Can compounds may be broken down into elements in a chemical change?
yes they can
Is decompostion of water a physical change?
Yes, it is a chemical change; new compounds (elements) are formed !
