WebJan 30, 2013 · Is C4H5 an element? No, C4H5 is not an element. To be an element, a substance must have all the same type of atom. In this molecule, there are two different types of elemental atom: Carbon and ... WebMatt B. 7 years ago. Water is not an element but a molecule but it is the most common molecule in our bodies. Oxygen is the most common element by mass (43% of all weight; carbon is 16% and hydrogen is 10%) in the body. The most common element by number is hydrogen (62% of all atoms; water is only 24% and carbon is 12%).
Elements, compounds and mixtures - BBC Bitesize
WebMay 13, 2024 · Consider water as an example. A molecule of water always contains one atom of oxygen and two atoms of hydrogen. The composition of water is expressed by the chemical formula H 2 O. A model of a water molecule is shown in Figure \(\PageIndex{4}\). Notice that molecules can be drawn in different ways, but represent the same molecule. WebJan 29, 2013 · Is C4H5 an element? No, C4H5 is not an element. To be an element, a substance must have all the same type of atom. In this molecule, there are two different … did fringe win any awards
Atoms and molecules - BBC Bitesize
WebIf you like, you can say that sodium chloride is an ionic compound. Oxygen in the atmosphere is a molecule because it contains molecular bonds. It is not a compound because it is made from atoms of only one element - oxygen. This type of molecule is called a diatomic molecule, a molecule made from two atoms of the same type. Author: WebJul 18, 2024 · Molecules can be made up of atoms from only one type of element or have atoms from more than one type of element. For example, an oxygen molecule (O 2) is formed with atoms from only one type of ... WebExample 3.4. 1. Identify each substance as a compound, an element, a heterogeneous mixture, or a homogeneous mixture (solution). filtered tea. freshly squeezed orange juice. a compact disc. aluminum oxide, a white powder that contains a 2:3 ratio of aluminum and oxygen atoms. selenium. Given: a chemical substance. did friendship 7 survive