A chemical change (as opposed to a physical change) is when the actual chemical makeup of a substance changes. For example, Na+Cl->NaCl. A physical change on the other hand would be more along the lines of H2O(s)->H2O(l), (melting ice).
A phase change is an example of a physical change, not a chemical, nuclear, or covalent change. During a phase change, the substance undergoes a change in state (solid, liquid, gas) without any change in its chemical composition.
A physical change that does not produce a new substance is called a reversible change. This means the change can be undone by reversing the process, such as melting or freezing.
The change in the crushed can appearance was caused by a physical change. When the can is crushed, the arrangement of its particles is altered, but no new substances are formed.
Alcohol vaporizing is a physical change because it does not involve a change in the chemical composition of the alcohol molecules. It is simply a phase change from liquid to gas.
No, flattening is a physical change, not a chemical change. A chemical change involves a change in the chemical composition of a substance, whereas flattening simply changes the shape or appearance of the object.
no chemecal
chemecal
so that you can safely smell a chemecal
I believe you are looking for the term "accelerant." A catalyst.
it helps make a chemecal reaction between fats and K hope i helped:)
Thorium is a member of the actinoids family.
3 min or less
2 min or less
The laptop runs on Direct Current (DC) electricity from an internal chargeable battery. Even when plugged into an Alternating Current (AC) electricity source from a mains power wall socket, the AC is changed to DC electronically inside the laptop.
Physical change is a change in the structure. Chemical change is a change in the composition. Melting is a physical change. Complexing is a chemical change.
Change what?Change what?
Change No Change was created in 1985.