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When atoms combine to form molecules, it is a chemical change. In a chemical change, new substances are formed with different properties from the original substances. This is in contrast to physical changes, where the state or appearance of a substance may change without forming new substances.
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When elements combine to form compounds their properties change?
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.
What type of change occurs when sodium and chlorine combine?
A chemical change occurs when sodium and chlorine combine to form sodium chloride (table salt). This reaction involves the rearrangement of atoms and the formation of new chemical bonds.
When iron and sulfur combined to form iron sulfide what change take place?
When iron and sulfur combine to form iron sulfide, a chemical reaction occurs. Iron atoms react with sulfur atoms to form a new compound with different physical and chemical properties than the original elements. The iron and sulfur lose their individual characteristics and combine to create a new substance, iron sulfide.
Is mixing sugar and cinnamon physical or chemical?
Mixing sugar and cinnamon is a physical change, as it does not alter the chemical composition of either substance. A chemical change involves a rearrangement of atoms to form new substances with different properties.
What change takes place when iron and sulfur combine to form iron sulfide?
When iron and sulfur combine to form iron sulfide, a chemical reaction occurs where iron atoms lose electrons to sulfur atoms, forming a compound with a new chemical structure. This reaction is exothermic, releasing energy in the form of heat.
Why is butter a physical state and rusting a chemical change?
Butter is the physical state of being a solid, like a brick. Rusting is a physical change where the metal atoms of iron on the metal object combine with the atoms of another element, oxygen. This creates a new molecule, rust, or oxygenated iron.
Is crystalization a chemical or physical change?
chemical
When elements combine to form compounds their properties change?
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.
When iron rusts is it the result of a physical change?
No, rusting of iron is a chemical change. It occurs when iron comes in contact with oxygen and water, leading to the formation of iron oxide (rust). This process involves a chemical reaction, where the iron atoms combine with oxygen atoms to form a new substance.
Who decided that atoms do not change when chemical combine into compound they just change places?
James K. Polk
What type of change occurs when sodium and chlorine combine?
A chemical change occurs when sodium and chlorine combine to form sodium chloride (table salt). This reaction involves the rearrangement of atoms and the formation of new chemical bonds.
What is the differences between a physical and chemical change in a candle?
The physical change will keep the atoms the same not moving but the chemical change will make it move around with energy.
The chemical behavior of atoms results from interactions among their?
When atoms combine interactions occur between their electrons. In most cases they will share or give electrons to the other atoms.
When iron and sulfur combined to form iron sulfide what change take place?
When iron and sulfur combine to form iron sulfide, a chemical reaction occurs. Iron atoms react with sulfur atoms to form a new compound with different physical and chemical properties than the original elements. The iron and sulfur lose their individual characteristics and combine to create a new substance, iron sulfide.
Is expansion of air chemical change?
No. "Chemical change" means that the bonds between atoms are rearranged.
Are physical and chemical change different?
Physical change does not produce a new substance. Chemical change produces a new substanceIn a chemical change the atoms/molecules are chemically joined together so they are very hard to separate. were as they are easyer to separate in a physical change
Is Sublime of a solid to gas chemical or physical change?
Change of state is always physical. You have not lost or gained any atoms. Therefore its physical.
