Chem 11 Notes Booklet (pdf version)
... 12) calcium 3) cobalt(III) 8) magnesium 13) sulfur 4) nitrogen 9) lithium 14) potassium 5) mercury(II) 10) chlorine 15) tin(IV) 4c) Polyatomic Ions Poly = many Polyatomic ions are tightly bound groups of atoms that behave as a unit and carry a charge. Sulfate Ion (SO42-) One sulfur atom and four ...
... 12) calcium 3) cobalt(III) 8) magnesium 13) sulfur 4) nitrogen 9) lithium 14) potassium 5) mercury(II) 10) chlorine 15) tin(IV) 4c) Polyatomic Ions Poly = many Polyatomic ions are tightly bound groups of atoms that behave as a unit and carry a charge. Sulfate Ion (SO42-) One sulfur atom and four ...
120CH05 - Louisiana Tech University
... • How many grams of oxygen does it take to completely burn 25.0 g of C3H8? • How many grams each of CO2 and H2O are produced when 25.0 g of C3H8 is burned? ...
... • How many grams of oxygen does it take to completely burn 25.0 g of C3H8? • How many grams each of CO2 and H2O are produced when 25.0 g of C3H8 is burned? ...
Single Replacement Reactions
... In nature, elements can occur either free, meaning uncombined with other elements, or chemically combined in a compound. The tendency of a particular element to combine with other substances is a measure of the activity of the element. The more active an element is, the more likely it is to combine. ...
... In nature, elements can occur either free, meaning uncombined with other elements, or chemically combined in a compound. The tendency of a particular element to combine with other substances is a measure of the activity of the element. The more active an element is, the more likely it is to combine. ...
Chemistry Standard Course of Study -- Detailed - UNCG GK-12
... Define atomic radius and ionic radius. Know group and period general trends for atomic radius. Apply trends to arrange elements in order of increasing or decreasing atomic radius. Compare cation radius to neutral atom. Compare anion radius to neutral atom. Explain the reasoning behind the trend. ...
... Define atomic radius and ionic radius. Know group and period general trends for atomic radius. Apply trends to arrange elements in order of increasing or decreasing atomic radius. Compare cation radius to neutral atom. Compare anion radius to neutral atom. Explain the reasoning behind the trend. ...
Science 9
... Gases are random groups of atoms. In solids, atoms and molecules are compact and close together. Liquids have atoms a little more spread out. However, gases are really spread out and the atoms and molecules move constantly. ...
... Gases are random groups of atoms. In solids, atoms and molecules are compact and close together. Liquids have atoms a little more spread out. However, gases are really spread out and the atoms and molecules move constantly. ...
Chapter 2 ATOMS AND ELEMENTS
... • Average mass is calculated from the isotopes of an element weighted by their relative abundances. • Boron is 20% 10B and 80% 11B. That is, 11B is 80 ...
... • Average mass is calculated from the isotopes of an element weighted by their relative abundances. • Boron is 20% 10B and 80% 11B. That is, 11B is 80 ...
educator exam series
... Mathematical tables and electronic calculations may be used All working MUST be clearly shown where necessary For examiner’s use only: Questions Max. score Candidates score ...
... Mathematical tables and electronic calculations may be used All working MUST be clearly shown where necessary For examiner’s use only: Questions Max. score Candidates score ...
Chapter 6 Chemical Reactions and Change
... B. CaCO3(s) + 133 kcal = CaO(s) + CO2(g) C. 2SO2(g) + O2(g) = 2SO3(g) + heat A and C are exothermic; B is endothermic and it proceeds because the CO2 is driven off by heating and escapes into the environment ...
... B. CaCO3(s) + 133 kcal = CaO(s) + CO2(g) C. 2SO2(g) + O2(g) = 2SO3(g) + heat A and C are exothermic; B is endothermic and it proceeds because the CO2 is driven off by heating and escapes into the environment ...
AP Chemistry Summer Assignment
... While you may need to reference materials to help remind you how to do some of these problems (your notes from chemistry A and B, your AP Chemistry textbook, the internet, etc.) please make sure that your work is YOUR OWN as you will be the one responsible for understanding this information. Include ...
... While you may need to reference materials to help remind you how to do some of these problems (your notes from chemistry A and B, your AP Chemistry textbook, the internet, etc.) please make sure that your work is YOUR OWN as you will be the one responsible for understanding this information. Include ...
Net Ionic Equations
... Determining Oxidation Number of Elements & Molecules 1. In uncombined or free elements (not ionized), each atom has an oxidation number of 0. E.g., all of the atoms in these molecules: H2, Na, S8, O2, P4. 2. In simple ions (i.e., charged species which contain only one atom), the oxidation number is ...
... Determining Oxidation Number of Elements & Molecules 1. In uncombined or free elements (not ionized), each atom has an oxidation number of 0. E.g., all of the atoms in these molecules: H2, Na, S8, O2, P4. 2. In simple ions (i.e., charged species which contain only one atom), the oxidation number is ...
Balancing reaction equations, oxidation state, and reduction
... Determining Oxidation Number of Elements & Molecules 1. In uncombined or free elements (not ionized), each atom has an oxidation number of 0. E.g., all of the atoms in these molecules: H2, Na, S8, O2, P4. 2. In simple ions (i.e., charged species which contain only one atom), the oxidation number is ...
... Determining Oxidation Number of Elements & Molecules 1. In uncombined or free elements (not ionized), each atom has an oxidation number of 0. E.g., all of the atoms in these molecules: H2, Na, S8, O2, P4. 2. In simple ions (i.e., charged species which contain only one atom), the oxidation number is ...
Lecture 6
... B. CaCO3(s) + 133 kcal = CaO(s) + CO2(g) C. 2SO2(g) + O2(g) = 2SO3(g) + heat A and C are exothermic; B is endothermic and it proceeds because the CO2 is driven off by heating and escapes into the environment ...
... B. CaCO3(s) + 133 kcal = CaO(s) + CO2(g) C. 2SO2(g) + O2(g) = 2SO3(g) + heat A and C are exothermic; B is endothermic and it proceeds because the CO2 is driven off by heating and escapes into the environment ...
Balancing Equations
... 1. Word Equations—Show the names of reactants and products. Example: Sodium + Chlorine Sodium chloride 2. Chemical equations—Show the formulas of reactants and products. Example: Na + Cl2 NaCl (Not Balanced Yet!) 3. Skeleton equations—Equations that are not yet balanced to represent what actuall ...
... 1. Word Equations—Show the names of reactants and products. Example: Sodium + Chlorine Sodium chloride 2. Chemical equations—Show the formulas of reactants and products. Example: Na + Cl2 NaCl (Not Balanced Yet!) 3. Skeleton equations—Equations that are not yet balanced to represent what actuall ...
Chapter One
... space. Each element is represented by a unique symbol. Most of these symbols make sense because they are derived from the name of the element. H ⫽ hydrogen C ⫽ carbon O ⫽ oxygen Se ⫽ selenium Mg ⫽ magnesium Al ⫽ aluminum Cr ⫽ chromium ...
... space. Each element is represented by a unique symbol. Most of these symbols make sense because they are derived from the name of the element. H ⫽ hydrogen C ⫽ carbon O ⫽ oxygen Se ⫽ selenium Mg ⫽ magnesium Al ⫽ aluminum Cr ⫽ chromium ...
Identify the following properties as either - Teach-n-Learn-Chem
... Ionic bond is a very strong bond with a high melting point; compound is brittle (if atoms are moved (ions repel each other and cleavage occurs)) The bond is formed when electron(s) are transferred from the metal to the non-metal. Ions are formed which attract very strongly. This is called an ionic b ...
... Ionic bond is a very strong bond with a high melting point; compound is brittle (if atoms are moved (ions repel each other and cleavage occurs)) The bond is formed when electron(s) are transferred from the metal to the non-metal. Ions are formed which attract very strongly. This is called an ionic b ...
Chemistry –Worksheet: Atomic structure
... 18. The most common form of iron has 26 protons and 30 neutrons in its nucleus. State its atomic number, atomic mass, and number of electrons if it's electrically neutral. Atomic number: _______ Atomic mass: ________ # of electrons: __________ 19. Consider the following three atoms: Atom 1 has 7 pro ...
... 18. The most common form of iron has 26 protons and 30 neutrons in its nucleus. State its atomic number, atomic mass, and number of electrons if it's electrically neutral. Atomic number: _______ Atomic mass: ________ # of electrons: __________ 19. Consider the following three atoms: Atom 1 has 7 pro ...
organic chemistry - Peoria Public Schools
... to indicate it is a branch e.g. methyl, ethyl, propyl. You need to identify the longest chain in the branched compound and any carbon atoms not in it must be part of a branch. The name of the branched compound should include: the name of the branch the number of branches if there is two or more ...
... to indicate it is a branch e.g. methyl, ethyl, propyl. You need to identify the longest chain in the branched compound and any carbon atoms not in it must be part of a branch. The name of the branched compound should include: the name of the branch the number of branches if there is two or more ...
Atomic number - River Dell Regional School District
... Develops Law of Definite Composition- all samples of a specific substance contain the same mass ratio of the same elements a. ex: all samples of CO2 contains 27.3% carbon and 72.7% oxygen b. therefore ‘elements’ are combining in a whole number ratio ...
... Develops Law of Definite Composition- all samples of a specific substance contain the same mass ratio of the same elements a. ex: all samples of CO2 contains 27.3% carbon and 72.7% oxygen b. therefore ‘elements’ are combining in a whole number ratio ...
CERAMICS MATERIALS - Wits Structural Chemistry
... Low valence metal oxides such as Na2O and CaO are often added to silica to soften the Si-O framework and referred to as modifiers. Bottles and windows are made of sodalime glass that contains Na2O and CaO as modifiers. Borosilicate glasses contains B2O3 as a modifier and have lower thermal expansion ...
... Low valence metal oxides such as Na2O and CaO are often added to silica to soften the Si-O framework and referred to as modifiers. Bottles and windows are made of sodalime glass that contains Na2O and CaO as modifiers. Borosilicate glasses contains B2O3 as a modifier and have lower thermal expansion ...