Hydrogen is a pure element, the other two are compounds.
Common table salt is sodium chloride (NaCl) and consists of the elements sodium and chlorine. Carbon dioxide (CO2), as the name implies, consists of the elements carbon and oxygen. Hydrogen (H2) is a diatomic element.
Carbon Dioxide is a compound and thus does not have an element name
Hydrogen is an element, single atom (H) Carbon dioxide is a compound of one carbon atom and two oxygen atoms (CO2) Hydrogen has only one electron in its valance shell but 'wants' to have two so it will often form covalent bonds with another element or compound that also 'wants' to gain an electron. Hydrogen will even bond to another hydrogen atom producing H2 therefore it is called a diatomic element. Carbon dioxide is a stable compound that will not usually react with other chemicals unless energy is added. Hydrogen is considered an indirect greenhouse gas. Carbon dioxide is considered the most prominent greenhouse gas, mostly due to its abundance.
A gas as carbon dioxide is easily expanded by heating; hydrogen peroxide is decomposed.
Methane burns in oxygen and gets oxidised. Carbon is oxidised to carbon dioxide, hydrogen to water.
Its non-metal
Carbon is an element, but not carbon dioxide. Carbon dioxide is a compound of carbon and oxygen.
Carbon is an element. Salt is a compound made of sodium and chlorine ions. Water is a compound made of hydrogen and oxygen atoms. Carbon dioxide is a compound made of carbon and oxygen atoms.
Hydrogen particles are smaller than carbon dioxide particles. Hydrogen has one proton and one electron in each atom, making it the smallest element. In contrast, carbon dioxide is a compound molecule composed of one carbon atom and two oxygen atoms, making it larger in size.
Oxygen is the element. Others are compounds not elements
Hydrogen has by far the smaller molecular mass (and atomic number) making it the smallest element
No: Hydrogen and sulphuric acid do not contain the element carbon, and no chemical reaction can have any element as part of the products that was not present in at least one of the reactants.
carbon dioxide
Hydrogen is a chemical element with the symbol H and atomic number 1. Air is a mixture of gases that typically includes nitrogen, oxygen, argon, and other trace gases. Carbon dioxide is a compound consisting of one carbon atom and two oxygen atoms, with the chemical formula CO2.
Carbon Dioxide is a compound and thus does not have an element name
Carbon Dioxide is a compound and thus does not have an element name
How could it? There is no carbon in hydrogen. It order to make carbon dioxide, you must have carbon and oxygen.
Carbon dioxide is denser.