Carbon and Oxygen combined chemically to form Carbon dioxide. Carbon dioxide is
Substance
Element
Compound
Mixture
Compound
Carbon dioxide is a compound.
Carbon dioxide is a chemical compound.
To understand why, let's look at the definitions of the terms you provided:
1. Substance: A substance is a general term that refers to matter composed of particles with the same chemical composition and properties. So, carbon dioxide can be considered a substance as it consists of particles with the same composition.
2. Element: An element is a substance that cannot be broken down or chemically changed into simpler substances. Carbon and oxygen are both elements, but when they chemically combine, they form a compound, in this case, carbon dioxide.
3. Compound: A compound is a substance composed of two or more elements chemically combined in a fixed ratio. Carbon dioxide fits this definition as it is made up of two elements, carbon and oxygen, chemically bonded together.
4. Mixture: A mixture is a combination of two or more substances that are not chemically combined and can be separated by physical means. Carbon dioxide does not fall under this category because it is a compound, not a mixture.
So, based on these explanations, we can conclude that carbon dioxide is a compound.