5characteristics of chemical reaction
1, evolution of gas
2,formation of precipitate
3,change in temperature
4,change in colour
5,change in state
a substance that is formed in a chemical reaction is called a product=)After a chemical reaction, new chemicals are formed. For an example:-NaOH + HCl = NaCl + HOH(H2O)Chemical substances are formed in chemical reactions.
Reactants
No, rusting is a chemical reaction in which iron reacts with oxygen in the presence of water to form iron oxide. This process is an example of a chemical change where the substance's chemical composition is altered.
One well-defined example of a chemical change is the rusting of iron. This process involves the reaction of iron with oxygen in the presence of water, leading to the formation of iron oxide (rust), which has different chemical properties than iron.
single replacement
This is a sign of a chemical reaction.
Chemical. It is called combustion.
A gas is evolved as a product of a chemical reaction.
no
chemical reaction.
A chemical compoud or a chemical reaction are not forces.
For example in an exothermic chemical reaction.
a chemical reaction
a substance that is formed in a chemical reaction is called a product=)After a chemical reaction, new chemicals are formed. For an example:-NaOH + HCl = NaCl + HOH(H2O)Chemical substances are formed in chemical reactions.
Striking a match is an example of an endothermic reaction. It is also an example of simple combustion and a chemical reaction.
Reactants
forming of white precipitates . release of heat .