IB Chemistry Summary- By Paul Li & Silvia Riggioni TABLE OF CONTENTS Table of Contents............................................................................................................................................................ 1 Atomic Theory................................................................................................................................................................ 3 The Electromagnetic Spectrum.............................................
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with the least ionic character is |a. |Na and Cl. |c. |O and Cl. | |b. |K and Cl. |d. |Mg and Cl. | ____ 2. The B—F bond in BF3 (electronegativity for B is 2.0; electronegativity for F is 4.0) is |a. |polar covalent. |c. |nonpolar covalent.
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2.2 Formulae of compounds 2.3 Reactions of Acid 2.4 Displacement of Metals 2.5 Double decomposition reaction 2.6 Others 3 CALCULATIONS 3.1 3.2 3.3 3.4 3.5 3.6 4 Relative Masses Mole and Number of particles Mole and Mass & Volume of Gases Empirical and Molecular Formulae Calculations involving Acids and Alkali Thermochemistry 23 24 24 – 25 26 27 – 29 29 - 30 17 17 18 – 19 20 20 21 4 - 10 11 - 15 PAGE GUIDED ESSAY WRITING FOR PAPER 2 4.1 4.2 4.3 4.4 4.5 4.6 Chemical Bond – Ionic bond Chemical Bond
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Atom Bonding Lab Introduction: Atoms bond in covalent bonds and ionic bonds. A covalent bond is when atoms share electrons in order to gain stability with each other (Larsen). To have stability which each other‚ the atoms share electrons so that their outer electron shell is equal. Ionic bonding is the complete transfer of valence electron(s) between atoms. It is a type of chemical bond that generates two oppositely charged ions (Larsen‚ 2010). Element that have a positive ion are able to bond
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The tap water contains ions and minerals that conduct electricity due to the charges within the water. Distilled water is a liquid covalent compound where there are no charges or minerals and ions floating around and thus no electricity is conducted. The conductivity of either
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Structure and bonding Ionic bonds are chemical bonds formed through an electrostatic attraction between two oppositely charged ions. Ionic bonds are formed between an metal and a non-metal. The metal loses an electron or electrons form its highest energy level becoming a positively charged Ion and the non-metal gains an electron or electrons in its highest energy level‚ becoming a negatively charged Ion. Covalent bonds are strong bonds between two non-metal atoms. A covalent bond forms when two non-metal
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Chemistry (Chapter 4-9‚ 12) *Ionic compounds have relatively high melting temperatures. *Know about polar bonds‚ nonpolar bonds‚ avogadro’s number‚ and calculating the atomic mass (unit?) * Chapter 4: Basically about theories of atoms and the atom itself 4-1: Theories The Greeks believed that all matter was composed of earth‚ fire‚ air and water. Democritus: the first person to propose the idea of atoms (that matter was not infinitely divisible): atomos. “Atoms are solid‚ homogenous
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Biology 113 Review sheet Chapter 2: * What is a compound and how is it different than an element? Compound is more than one element. An element cannot be broken down by chem. Rxns. * What are the 4 main elements of life? Why? C‚H‚O‚N they make up 96% of living matter and they are found in all of the major macromolecules * Be able to calculate the number of protons‚ neutrons and electrons given an element’s mass number or atomic number. If given this symbol - 4He – can you tell
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UNIT 1 MATTER‚ CHEMICAL TRENDS AND CHEMICAL BONDING UNIT 1 MATTER AND CHEMICAL BONDING 1.1 The Study of Chemistry Chemistry is the study of matter and its properties‚ the changes (chemical‚ physical‚ and nuclear) that matter experiences‚ and the energy that is associated with these changes. The term STSE refers to science‚ technology‚ society‚ and the environment. These four areas are
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crystalline‚ inorganic substance‚ that has a specific chemical composition. 6. What is a compound? New substance that results from the bonding of two or more elements. 7. What is the difference between covalent and ionic bonds? Ionic Bonds are the bonding of two electrically charged atoms when one atom has transferred an electron to the other causing the two ions to become positively and negatively charged. Covalent
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