Increased concentration, increased temperature, and a catalyst will all increase reaction rates relative to what they normally are. Some reactions however will still be slow even with the change in these variables.
The reaction would be termed a chemical reaction.
Bleaching is a chemical reaction.
For most reactions, the lowering of the temperature of the reactants.
That would be the product of the chemical reaction.
A chemical reaction is what takes place when two or more opposing chemical come together and cause some sort of reaction, either positive or negative. An example would be mixing bleach and ammonia which will trigger a very noxious smell which can lead to serious illness.
Burning is a chemical reaction (oxidation).
A chemical reaction can be represented by a chemical equation.
When CoCl2·6H2O is heated, the water molecules are driven off, leaving anhydrous CoCl2. This is a physical change, not a chemical reaction. However, the anhydrous CoCl2 can undergo chemical reactions depending on the conditions and other reactants present.
A short representation of a chemical reaction would be the net ionic equation.
No, that would probably be considered a physical change. It is only a chemical reaction its chemical makeup is changed.
It would be a chemical change/reaction.
Yes, rusting of a car is an example of a chemical reaction. It involves the reaction of iron in the presence of oxygen and water to form iron oxide, which gives the characteristic reddish-brown appearance of rust.