Thus, two or more elements combine to form compounds.Answer and Explanation: Compounds are substances formed by combining two or more elements that always combine in a fixed ratio. Hence, compounds are composed of different......
A) oxygen B) nitrogen C) calcium D) carbon E) phosphorous Inorganic vs. Organic Compounds: Organic compounds are found in living matter. They tend to be much larger than inorganic compounds, and include macromolecules such as proteins, carbohydrates,...
Carbon is a chemical element in the periodic table with six protons and six electrons. It is the most abundant element in Earth's crust and is found in all living things. Carbon is vital for life and is present in all organic compounds. Additionally, it is the fourth most abundant element...
many substances, such as wood, burn in air and burn even more vigourously in pure oxygen). Mixtures do not have fixed precise melting and boiling points (which elements and compounds do have), but instead mixtures melt / freeze and boil / condense over a range of temperatures according to...
Covalent compounds are formed when electrons are shared between the atoms and due to this sharing of electrons, they exhibit unique physical properties as compared to ionic compounds.Answer and Explanation: Some of the main properties of covalent compounds are : 1. Covalent compounds have a very...
Human breath is essentially composed of five components: nitrogen, oxygen, carbon dioxide, water andargon. But besides these five, there are hundreds of other components that are present in very low quantity. These are called volatile or...
Those elements can produce table salt, a combination of sodium and chloride, water, a combination of hydrogen and oxygen, and myriad other, more complicated compounds. In classroom- and laboratory-based coursework, students will become adept problem-solvers as they learn fundamental properties of ...
It might be that even after adding the HCl, it is green already, because oxygen from the air also oxidizes the copper (I) compounds easily.Wilco Logged Want to wonder? See http://www.oelen.net/scienceXeluc Guest Re:What is this compound(s)? Electrolysis « Reply #11 on: June ...
Lectins were discovered almost 130 years ago, in 1888. That’s well over a decade before aviation, something we have since mastered. Yet these commonly occurring compounds largely remain a mystery. And while you may not be flying every day, it’s guaranteed that you are eating foods containin...
A, C, G and T (and U) arenitrogenousbecause of the large amount of the element nitrogen they contain relative to their overall mass, and they arebasesbecause they are proton (hydrogen atom) acceptors and tend to carry a net positive electrical charge. These compounds do not need to be ...