Element
what is a element.
a pure substance that cannot be broken down into simpler substances by chemical means
What is a compound.
a pure chemical substance formed when two or more different chemical elements are chemically bonded together in a fixed ratio.
what is a example of a element
Gold
what is a mixture
a physical combination of two or more substances that are not chemically bonded
what two elements make glucose
carbon, hydrogen, and oxygen.
What are the compounds that make table salt.
sodium chloride.
Na Cl
what is the lightest element.
hydrogen
why is H2o a compound.
because it is a substance that is formed when two or more different chemical elements are chemically bonded together.
Why is Na a element
it is a pure substance made of only one type of atom (with 11 protons) and cannot be broken down into simpler substances through chemical reactions
Why is Co2 a compound
because it is formed when two or more different elements, specifically one carbon atom and two oxygen atoms, are chemically bonded together in a fixed ratio