PPT-Chemical Bonds Types of Chemical Bonds

Covalent Bond bond formed when atoms share electrons Examples HCl H 2 O CO 2 Ionic Bond bond formed when an atom gains or loses electrons Examples NaBr NaCl KBr. Introduction to Chemical Bonding. Introduction to Chemical Bonding. Objectives:. Define . chemical bond.. Explain why most atoms form chemical bonds.. Describe ionic and covalent bonding.. Explain why most chemical bonding is neither purely covalent nor purely ionic.. Chemical Reactions. Investigation One. Chemical compounds are formed when two or more elements combine.. H. ₂ + O .  H₂O (water). Na + . Cl.  . NaCl. ( Sodium Chloride – Salt). Chemical Compounds. Bonds and Energy. Breaking chemical bonds . requires. energy. Forming chemical bonds . releases. energy. The amount of energy required or released for a chemical process depends on the number and types of bonds that are formed and broken. Add the new notes to your . table of contents. , and then turn to the next clean page and set up your title and date. Tape the two slides into your INB flat down, directly under your title - they do not need to flip up. is . concerned that he cannot remember all of the important information about the . different types of. chemical bonds, so he asks his . tutor, Josh, . to help him review the different types of chemical bonds prior to choosing his research topic. . Chemical Reactions. A . chemical reaction . is a process that changes, or transforms, one set of chemicals into another by changing the chemical bonds that join atoms in compounds. . @Mass and energy are conserved during chemical transformations.@. Do not. . start drawing on the whiteboards. Have . your periodic table out. Any questions from your review guide?. How many valence electrons does sodium have?. How do you know?. How many valence electrons does chlorine have?. CarbonCSulfurSNitrogen NPhosphorus P Arsenic AsChorineClFluorine FOxygen OVisualising and Reading Molecular StructuresSingle bondDouble bondModelsTranslationThisisaformatoftenusedbychemistsItallowsbon Changes or transforms chemicals into . other. chemicals. Ex: Iron + Oxygen . . Iron Oxide (rust). Physical Science Review. What is the product?. What are the reactants?. Chemical formula. . shows the kind and proportion of atoms of each element that occurs in a particular compound. The key words are emphasized in bold . and there is a list of them at the end of the presentation. . Chemical Reactions. When a chemical reaction occurs, new substances (called . products. ) form from the substances taking part in the reaction (called . When elements combine to form compounds a chemical reaction occurs creating a new compound with properties that are different from the original elements.. When a new compound is formed it has a new chemical formula. A . What is a Chemical Reaction?. A Chemical reaction occurs when ever a chemical bond is formed, broken or rearranged.. A chemical reaction will always create a new substance.. Energy and Chemical Reactions. All. chemical reactions either release or absorb energy. . The energy can take many forms: . HEAT. , . LIGHT. , . SOUND. , and . ELECTRICITY. . Chemical . bonds. are the source of this energy. . molecule. s. . C, H, O, N, P . combine and may form . CH. 4. , H. 2. O, NH. 3. , H. 2. , PO. 4. 3-. Molecules . form . m. onomers. . CH. 4. , H. 2. 0, NH. 3. . may combine and form . amino acids. Monomers.