Yes, burning of a sparkle is a chemical change because once sparkle has changed its form it cannot come into its previous form. For understanding you can also take the example of cooked rice which once cooked cannot be raw again.
No. Burning of platinum wire is not a chemical change. It is a physical change. This is because no new substance is formed on burning of the platinum wire. It simply glows on being heated. Once cooled down it gets back to its original form. So this a reversible process. And reversible changes are physical changes. (Mostly)
Yes, burning solder wire is a type of chemical change. Burning almost anything is a chemical change due to multiple chemicals reacting to give off fumes, smoke, or flames.
Yes (provided you mean buring choloclate to produce a flame).
Burning is always a chemical reaction, no matter what specific substance is burning.But it is however a total waste of good chocolate
Physical change
Yes, it is a chemical change.
Physical
physical change
This is a chemical reaction; oxygen is released.
A chemical change
heat reaction leads to both physican and chemical changes
cold water heating up to its boiling point a physical change or a chemical change
physical change
The heating itself is a physical change, a chemical change might come from the heating, however.
Heating anything to a visible change is ALWAYS a chemical change
Heating a frying pan is a physical change. A chemical change is when you change the chemical properties. Heating the pan is only changing the temperature of the pan not the chemical make up.
It is not a chemical change, unless you heat it sufficiently to make it catch fire.
CHEMICAL:)
This is a chemical reaction; oxygen is released.
chemical change
Heating is a physical change.
no
A chemical change
heat reaction leads to both physican and chemical changes