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"The law of definite proportions, also known law of definite composition, states that regardless of the amount, a pure compound always contains the same elements in the same proportions by mass. Law o ...
Video Física
"Valence electrons are the outer electrons that are involved in bonding. Only electrons in the s and p orbitals are valance electrons, so a given atom can have between 0 and 7 valance electrons. Atoms ...
Hipervinculo Química
"Ionization energy is the minimum energy required to remove an electron from the ground state of an atom. Ionization energy is a periodic trend which increases going from top to bottom and left to rig ...
Hipervinculo Química
"Transition metals are in the d-block and have valence electrons in the d-orbital's. They can form multiple oxidation states and form different ions. Iron, Cobalt and Nickel are ferromagnetic. Inner t ...
Hipervinculo Biología
"A hydrogen bond is an extremely strong bond between molecules with a Hydrogen atom bonded to a Fluorine, Oxygen or Nitrogen atom and a molecule with a Fluorine, Oxygen or Nitrogen atom. Hydrogen bond ...
"Halogens are nonmetal elements located on the right side of the periodic table in Group 7. Halogens include the elements of florine, chlorine, bromine, iodine and astatine. Halogens have a negative 1 ...
Video Física
"States of matter are the different phases which matters can take - gas, liquid and solid. Gas has no fixed shape and conforms to the volume of its container. A liquid has a distinct volume but assume ...
Hipervinculo Biología
"Fats and lipids are large organic molecules which are used for energy storage and which make up the which make up the lipid bi-layer of the plasma membrane of cells. Lipids have hydrophobic “tails” w ...
Hipervinculo Física
"There are two main exceptions to electron configuration: chromium and copper. In these cases, a completely full or half full d sub-level is more stable than a partially filled d sub-level, so an elec ...
"Enzymes are proteins that catalyze chemical reactions by facilitating the positioning of molecules. In biochemical pathways, sequences of enzymes form a chain of chemical reactions. Enzymes, like all ...
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