By 'chemical combination' I assume you mean that the Elements have reacted with one another.
If they have reacted, the result would be called a Compound (or the Product) and, the input Chemicals are called Reactants.
compounds
its physical and chemical properties. The temporal force is the dominant force which evolves flowing from the present to the future causing variations in the shape and speed of the sequence of change of substances!
Compound
they are chemical elements
One of the combinations is a chemical change. The other one is a PHYSICAL change. That is the difference.
A compound is a chemical substance containing in the molecule two or more different chemical elements.
An element is not a mixture because elements are made up of one type of atom and mixtures are combinations of different substances.
Yes, chemical elements are substances.
It depends on the elements! If two of them are carbon and hydrogen, hundreds of compounds can be made from these elements alone. If the four elements are all noble gases, no new substances can be made from them by chemical reaction.
A substance that has properties different from the chemical elements in it is a chemical compound. A chemical compound is built from chemical elements that are chemically bonded together. And the "finished product" will have chemical properties that are unique to that compound, and different from the properties of the substances that make it up.
Elements are made up of only one thing. While a compound is made of two of more elements. Here is an example. H2O. Water is hydrogen and oxygen.
Substances that cannot be chemically broken down into simpler substances are called elements.