Water is made up of two different elements, 2 hydrogens and 1 oxygen, so H2O is a compound. Two oxygen atoms (O2) are two elements, but they are the same element, so O2 is a molecule. Iron oxide (Fe2O3), or rust, is made up of two different elements, 2 irons and 3 oxygens...
Did the extra O atom come from breaking a water molecule, or O2 dissolved in the solution?Thanks Logged Babcock_Hall Chemist Sr. Member Posts: 5705 Mole Snacks: +330/-24 Re: decomposition of propylene glycol to lactic acid (is it exothermic) « Reply #3 on: January 08, 2020, 01...
Oxidation numbers are the charges associated with an ion. Cations are positively charged, and anions are negatively charged. Most polyatomic ions are negatively charged. The charges result from an excess or deficit of electrons in an atom or molecule. ...
A related chemistry term is diatomic, which refers to a molecule made up of two atoms that can either be of the same element or of two different elements. Elements rarely exist in a monatomic state, especially if they are not in gas form. This is because atoms tend to cluster together...
M. et al. A small molecule G6PD inhibitor reveals immune dependence on pentose phosphate pathway. Nat. Chem. Biol. 16, 731–739 (2020). Article PubMed PubMed Central CAS Google Scholar García-Cañaveras, J. C. et al. SHMT inhibition is effective and synergizes with methotrexate in T...
What is the basic difference between the atom or molecule of a diamagnetic and a paramagnetic material? Why are elements with even atomic numbers more likely to be diamagnetic? Refer to the periodic table and give the period and group number for each of these elements: (a) neon (b) barium...
Answer to: Olive oil is almost pure triolein (a molecule). The molar mass of triolein is 885 g/mol. How many olive oil molecules are in 500 g of...
Tetraethyl orthosilicate (TEOS) is the chemical compound with the formula Si(OC2H5)4, and it is a colorless liquid that degrades in water. TEOS molecule consists of four ethyl groups attached to SiO4- ion, which is called orthosilicate. As an ion in solution, orthosilicate does not exist....
O is a free oxygen atomand O2 is two oxygen atoms chemically bound to form an oxygen molecule. There is no common analogy for C, but N2 is called nitrogen, H2 is hydrogen and Cl2 is chlorine, each having the same name as that of their constituent elements. ...
The periodic table arranges elements according to certain chemical properties called groups (columns) and the rows, or periods, structure elements along electron energy levels.Answer and Explanation: The molar mass of a molecule is the sum of the molar masses of each atom in the molecule. The ...