ANSWERS: 8
  • Physical changes will only allow the same chemical compound to take one of the 4 states of matter (solid, liquid, gas and plasma). Chemical changes will allow the chemical compound to rearrange its molecular structure into a different compound that also may exist at any of the 4 physical states of matter.
  • Simple: physical changes effect the outside of an object. chemical changes effect the inside of an object.
  • Simply put chemicla changes causes physical changes. Physical changes are those which can be seen or orbserved like change in state or change in temperature, while chemical changes are like the molecules becoming more compact and fix in order to allow the physical change for the object to become solid or also the more rapid movements of molecules to cause a change in temperature.
  • In a chemical change, the atoms of individual molecules get rearranged, i.e., chemical bonds are made and/or broken. In a physical change, the molecules remain intact while other properties (example: temperature) change.
  • A physical change is anything like melting or turning to gas or breaking apart or sticking together. Disolving in water or other liquid as well is a physical change. A chemical change changes matter at the molecular level. Often characterized as producing or taking away heat, changing color, lighting on fire, bubbling without added heat, or other things like that. Chemical reactions are anything where the end result is not what was started with on the molecular level. Add sodium and chlorine together and get salt.
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  • 1. Chemical changes are hard to reverse while physical changes can easily reverse. 2. An object still ahs the same properties after a physical change while substances completely change into a new substance in a chemical change.

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