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Explain chemical changes in terms of the structure and motion of atoms and molecules?
Wiki User
∙ 11y ago
a chemical change destroys the old atoms and molecules to make completely new ones and a completely new substance.
Wiki User
∙ 11y ago
Chemical changes involve the breaking and forming of chemical bonds between atoms and molecules. During a chemical reaction, atoms and molecules rearrange their structure, resulting in the formation of new substances with different properties than the original ones. This rearrangement is driven by changes in the electron configuration of the atoms involved.
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Changes of state are considered physical changes because?
changes of state involve rearranging of molecules while maintaining the same chemical composition. The substance retains its original properties even though it has changed form (solid, liquid, gas). No new substances are produced during changes of state, making it a physical change.
Are most chemical changes seen or not seen?
Most chemical changes happen between molecules, so they are unseen.
What changes shape in a chemical reactions?
New molecules are formed.
When water freezes at 0 degrees Celsius describe chemical properties?
When water freezes at 0 degrees Celsius, the hydrogen bonds in water molecules reorganize into a crystalline structure, resulting in a solid, ice. The chemical composition of the water molecules remains the same, but the arrangement changes to form a lattice structure, which causes the expansion and density decrease associated with freezing.
Classify as chemical and physical change-freezing of water?
Freezing of water is a physical change because it involves a change in state from liquid to solid without altering the chemical composition of water. The molecules in water rearrange to form a crystalline structure in the solid state but remain as H2O molecules.
do oreos undertake any chemical changes?
Do Oreos undertake any chemical changes? Yes. How can Oreo be a chemical changes? Cooking involve chemical reactions, modifications of chemical molecules.
When water changes to ice the link up of atoms does or does not change?
The arrangement of atoms changes when water changes to ice. In liquid water, the molecules are more disordered and free to move, while in ice, the molecules arrange themselves in a more orderly crystal lattice structure.
Can molecular structure of sunlight change random?
Sunlight is not made of molecules and therefore has no "molecular structure."Sunlight can induce certain types of chemical changes in molecules that it hits; however, these are not "random" but fall into certain well-defined classes.
Changes of state are considered physical changes because?
changes of state involve rearranging of molecules while maintaining the same chemical composition. The substance retains its original properties even though it has changed form (solid, liquid, gas). No new substances are produced during changes of state, making it a physical change.
How can Oreo be a chemical changes?
Cooking involve chemical reactions, modifications of chemical molecules.
How are machanical and chemical weathering different?
Mechanical weathering is a process which physically changes the appearance of a rock or structure. Chemical weathering is a process which changes the chemical composition of a rock or structure.
What is chemical physics?
Physical is when a rock or something changes its shape and not structure. Chemical is when a rock or something changes its entire format like a shape and structure.
Are most chemical changes seen or not seen?
Most chemical changes happen between molecules, so they are unseen.
Chemistry is primarily concerned with the composition of and changes in what?
Chemistry is primarily concerned with the composition of matter and the changes that occur in that matter. It focuses on understanding the structure of atoms, molecules, and how they interact to form new substances through chemical reactions.
What changes shape in a chemical reactions?
New molecules are formed.
Is making jam chemical or physical changes?
Making jam involves both chemical and physical changes. Chemical changes occur when the fruit's natural sugars break down during cooking, leading to caramelization and the creation of new complex flavors. Physical changes occur when the mixture thickens as pectin molecules form a gel-like structure to give the jam its characteristic texture.
Did the Greeks explain why chemical changes occurred?
Very probable not
