What are the example of compound elements?

Answer 1

Water is a molecular compound, comprised of two atoms of Hydrogen and one atom of Oxygen. A compound is any mixture or solution that is composed of more than one item.

If you dissolve salt in water, you have a solution that is also a compound because it is composed of more than one thing. Water, as described above, is Hydrogen and Oxygen. Common table Salt is Sodium and Chlorine.

In more common everyday use, compounds are considered to be two or more complex items blended together to enhance the properties of the resulting mixture to make it better than either of the components would be alone. For example, it is possible to make a building out of Portland Cement and water, but it is intrinsically stronger if you add sand & gravel to make the more complex compound concrete.

Answer 2

Elements are substances that cannot be separated into simpler substances. Salt is made up of the elements sodium and chlorine. Water is made up of the elements hydrogen and oxygen.

The smallest particles of matter are called atoms. Remember the carrot from the other chapter. If you continue to chop a carrot into smaller and smaller pieces, eventually you would reach a point where you could not cut up the carrot anymore, but still have carrot. You would then have molecules of carrot. The same applies to elements. If you continually cut up a piece of aluminum, you will reach a point that you could no longer divide it. These are aluminum atoms. An atom is the smallest particle of an element that has the properties of that element. Some properties of aluminum are: shiny, silver colored, fragile, and thin. Each element has its own type of properties.

Chemists use symbols to represent elements. A symbol is a letter or picture used to represent something. Chemists use one or two letters to represent elements. The symbol for aluminum is Al. The symbol for oxygen is O.

Answer 3

oxygen

co2