may be....
a blood clotting while a blood transfusion.
very........ rare.
cause it is irreversible!
and anything which is irreversible, that is.................................
A chemical change doesn't occur.
Very probable a chemical change; but also physical changes can be the cause.
Chemical changes are most often reffered to as chemical reactions and are represented by chemical equations.
Combustion is basically a chemical reacting with oxygen to become the oxide and water is produced. So when alcohol combusts, for example, it is changed (burned) to carbon dioxide and water. In other words, there is a chemical change.
A physical change is a change in chemical composition. A physical change is a change where chemical composition is not altered. Not all chemical changes are accompanied by a physical change, but some are. The same is true for the reverse.
Most circumstances of colour change are chemical.
A chemical change doesn't occur.
This is a chemical reaction.
Very probable a chemical change; but also physical changes can be the cause.
chemical weathering change will most likely make a new substance
Unlike salt, potassium nitrate's chemical solubility is most affected by a change in temperature. Potassium nitrate is a chemical compound.
Its a chemical change because the properties of charcoal are changing when fire makes contact with it. It is realising energy and that is one of the most important signs to know if it is a chemical reaction.
Physical
Chemical changes are most often reffered to as chemical reactions and are represented by chemical equations.
Burning is a chemical change.
Burning is most likely chemical
Combustion is basically a chemical reacting with oxygen to become the oxide and water is produced. So when alcohol combusts, for example, it is changed (burned) to carbon dioxide and water. In other words, there is a chemical change.