CHEMISTRY 1. States of Matter: Solid‚ liquid and gaseous states(general characteristics)‚ Change of states‚ effect of change of temperature and pressure on states of matter‚ evaporation‚ mixture‚ solution‚ its type and its concentration(percent strength by volume and by mass)‚ separation of components from a mixture using various physical methods‚ physical and chemical changes‚ compounds 1. NCERT class IX text book (chapter 1 and 2) 2. Foundation Science(Chemistry) :Class IX A. K. Singh ( Bharati
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Chemical Bonding Chemical compounds are formed by the joining of two or more atoms. A stable compound occurs when the total energy of the combination has lower energy than the separated atoms. The bound state implies a net attractive force between the atoms ... a chemical bond. The two extreme cases of chemical bonds are: Covalent Bonds Covalent chemical bonds involve the sharing of a pair of valence electrons by two atoms‚ in contrast to the transfer of electrons in ionic bonds. Such bonds lead
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* Introduction to Organic Chemistry Understand the basis of drawing organic structures Depicting 3-D structures in 2-D Most organic compounds have a three-dimensional structure. How do we represent structures on our two-dimensional page? For example‚ methane is a tetrahedral molecule: Bonds in the plane of the paper: Bonds coming towards the observer: (out of the page) Bonds going away
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Representative Elements I. Elements A. Representative Elements: Groups 1A through 8A ← Filling s and p orbitals ← First member of a group forms the strongest ( bonds; results in diatomic molecules B. Transition Elements: center of the table ← Filling d orbitals C. Lanthanides & Actinides: listed separately‚ on the bottom on the table ← Filling 4f and 5f orbitals II. Metals/Nonmetals/Metalloids A. Metals: ← Lose valence electrons to form cations
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balance scale to determine Acid‚ Base‚ and Neutral. On this lab we used 7 different solutions to determine if it’s either base‚ acid‚ and neutral. These are ammonia‚ vinegar; drain cleaner‚ soft drink‚ baking soda‚ detergent‚ and lemon juice are the solutions that are going to be tested in this lab. My hypothesis for these solutions is ammonia is acid‚ vinegar is neutral‚ drain cleaner is base‚ soft drink is base‚ baking soda is base‚ detergent is base‚ and lemon juice is an acid. For the red cabbage
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Oakland Schools Chemistry Resource Unit Intermolecular Forces Brook R. Kirouac David A. Consiglio‚ Jr. Southfield‐Lathrup High School Southfield Public Schools Bonding: Intermolecular Forces Content Statements: C2.2: Chemical Potential Energy Potential energy is stored whenever work must be done to change the distance between two objects. The attraction between the two objects may be gravitational‚ electrostatic‚ magnetic‚ or strong force. Chemical potential energy is the result
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frequency 18. Calculations with energy‚ wavelength‚ and frequency 19. Dual nature of light and photoelectric effect 20. Electron’s energy is quantized‚ meaning that electrons jump by steps of QUANTA 21. Electron’s configuration a. electrons are in orbitals – place of higher probability of finding the electrons in an atom b. the four quantum numbers: n‚ l‚ m‚ s c. main energy level of an electron is
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example‚ the double bond between the carbon atoms is broken‚ allowing each carbon atom to form one more bond between another molecule. The double bond between the carbon atoms is weaker because the type of orbital is ‚ compared to a bond between the single-bonded carbon atoms. The reason that the orbital is weaker is because of the way that the electrons orbit the atoms‚ which is in an hour glass formation. This means that the area that the electrons overlap is above and below the two bonded atoms. Comparatively
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Methane From Wikipedia‚ the free encyclopedia Methane IUPAC name[hide] Methane[1] (substitutive) Tetrahydridocarbon[1] (additive) Identifiers CAS number 74-82-8 PubChem 297 ChemSpider 291 EC number 200-812-7 UN number 1971 KEGG C01438 MeSH Methane ChEBI CHEBI:16183 ChEMBL CHEMBL17564 RTECS number PA1490000 Beilstein Reference 1718732 Gmelin Reference 59 3DMet B01450 Jmol-3D images Image 1 SMILES [show] InChI [show] Properties Molecular formula CH4 Molar mass 16
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two forms of the same element have the same number of protons but differ in the number of neutrons. 4-Be able to draw the electron shell diagram of an atom based on the atomic number and to predict the number of covalent and or ionic bonds that the atom will form based on the atomic number. -electron shells-3 shells (2-8-18) -Electron Orbital-2 electrons can fit into an orbital 5- Be able to distinguish covalent‚ ionic‚ hydrogen and hydrophobic bonds on the basis of structure and strength
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