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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 ...
Video Química
"When working with scientific data, we only want to show as many figures as carry accurate meaning, called significant figures. When adding or subtracting two numbers, we round to the same number of d ...
Hipervinculo Biología
"Elements and compounds are differentiated by their composition. Elements cannot be decomposed into simpler substances. Compounds are composed of two or more elements, but the chemical identities and ...
Video Química
"Electronegativity is a quantitative measure of how tightly an atom holds onto its electrons. Bond polarity results from imbalanced electronegativities of the atoms involved in bonding. Electronegativ ...
Video Física
"Electron configuration is shorthand for the arrangement of electrons in atomic orbitals. It is written out, as opposed to orbital diagrams which are depicted pictorially. For elements with many elect ...
Video Química
"There are certain unit systems which the scientific community has universally agreed upon. To measure distance in scientific units we use meters (m), to measure mass we use grams (g), to measure volu ...
"Scientific notation is used to make extremely large or small numbers more manageable. Numbers written in scientific notation are the products of a digit term and an exponential term and are written i ...
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