Chapter 7 Periodic Properties of the Elements
... The effective nuclear charge is given by the equation: Zeff = Z S where Z represents number of protons in the nucleus and S represents the average number of electrons between the nucleus and the electron in question. Here: Zeff = 15 10 = +5 ...
... The effective nuclear charge is given by the equation: Zeff = Z S where Z represents number of protons in the nucleus and S represents the average number of electrons between the nucleus and the electron in question. Here: Zeff = 15 10 = +5 ...
Chapter 5. An Overview of Organic Reactions
... A step involves either the formation or breaking of a covalent bond Steps can occur in individually or in combination with other steps When several steps occur at the same time they are said to be concerted ...
... A step involves either the formation or breaking of a covalent bond Steps can occur in individually or in combination with other steps When several steps occur at the same time they are said to be concerted ...
UNIT 7 – CHEMICAL REACTIONS
... 1. A ________________________ is simply a chemical change. It is the process by which one or more substances are changed into one or more different substances. 2. The original substances are known as ____________________ while the resulting substances are called ____________________. 3. Evidence of ...
... 1. A ________________________ is simply a chemical change. It is the process by which one or more substances are changed into one or more different substances. 2. The original substances are known as ____________________ while the resulting substances are called ____________________. 3. Evidence of ...
PDF
... are not the amounts that would be produced if the reactions were actually done in the laboratory. In each case, less product would be obtained than was calculated. There are numerous causes. Some materials are lost during transfers from one container to another and side reactions take place that are ...
... are not the amounts that would be produced if the reactions were actually done in the laboratory. In each case, less product would be obtained than was calculated. There are numerous causes. Some materials are lost during transfers from one container to another and side reactions take place that are ...
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PPT
... • Oxidation numbers (also called oxidation states) are positive or negative numbers assigned to elements in chemical formulas according to a set of rules. The term oxidation number is abbreviated O.N. •Rule 1: The O.N. of any uncombined element is 0. For example: Fe (0), Cl2 (0), and Ca(0) •Rule 2: ...
... • Oxidation numbers (also called oxidation states) are positive or negative numbers assigned to elements in chemical formulas according to a set of rules. The term oxidation number is abbreviated O.N. •Rule 1: The O.N. of any uncombined element is 0. For example: Fe (0), Cl2 (0), and Ca(0) •Rule 2: ...
Chapter 8 Notes
... There are two main factors effecting the amount of lattice energy. Lattice energy increases with decreasing ionic radii. This makes sense if you think about it. After-all the smaller the ion, the closer the positive nucleus is to the valence electrons responsible for bonding. So Magnesium compounds ...
... There are two main factors effecting the amount of lattice energy. Lattice energy increases with decreasing ionic radii. This makes sense if you think about it. After-all the smaller the ion, the closer the positive nucleus is to the valence electrons responsible for bonding. So Magnesium compounds ...
chemical reaction
... (ree AK tunts). • Reactants are the substances that exist before the reaction begins. • The substances that form as a result of the reaction are called the products. ...
... (ree AK tunts). • Reactants are the substances that exist before the reaction begins. • The substances that form as a result of the reaction are called the products. ...
Electrochemistry Lecture
... 1. For an atom in its elemental form (Na, O2, Cl2 …) Ox# = 0 2. For a monatomic ion: Ox# = ion charge 3. The sum of Ox# values for the atoms in a compound equals zero. The sum of Ox# values for the atoms in a polyatomic ion equals the ion charge. Rules for specific atoms or periodic table groups. 1. ...
... 1. For an atom in its elemental form (Na, O2, Cl2 …) Ox# = 0 2. For a monatomic ion: Ox# = ion charge 3. The sum of Ox# values for the atoms in a compound equals zero. The sum of Ox# values for the atoms in a polyatomic ion equals the ion charge. Rules for specific atoms or periodic table groups. 1. ...
Yearly Lesson Plan 2007
... explain with examples oxidation and reduction processes in terms of electron transfer, explain with examples oxidising and reducing agents in redox reactions, write oxidation and reduction halfequations and ionic equations. 3.2 Analysing rusting as a redox reaction state the conditions for ...
... explain with examples oxidation and reduction processes in terms of electron transfer, explain with examples oxidising and reducing agents in redox reactions, write oxidation and reduction halfequations and ionic equations. 3.2 Analysing rusting as a redox reaction state the conditions for ...
thermochermistry ap - Mater Academy Lakes High School
... 5.7 Enthalpies of Formation There are many types of enthalpy for each substance: o Enthalpy of vaporization is the energy it takes to change a liquid to a gas o Enthalpy of fusion is the amount of energy it takes to melt a solid substance o Enthalpy of combustion is the amount of energy it takes t ...
... 5.7 Enthalpies of Formation There are many types of enthalpy for each substance: o Enthalpy of vaporization is the energy it takes to change a liquid to a gas o Enthalpy of fusion is the amount of energy it takes to melt a solid substance o Enthalpy of combustion is the amount of energy it takes t ...
All you need to know about Additional Science
... any sample of Chlorine 25% will be 37 Cl and 75% 35 Cl. The relative atomic mass is therefore calculated using the equation: • (% of isotope 1 × mass of isotope 1) + (% of isotope 2 × mass of isotope 2) ÷ 100 So in the case of chlorine: ...
... any sample of Chlorine 25% will be 37 Cl and 75% 35 Cl. The relative atomic mass is therefore calculated using the equation: • (% of isotope 1 × mass of isotope 1) + (% of isotope 2 × mass of isotope 2) ÷ 100 So in the case of chlorine: ...
Science Notes on Physical and Chemical Properties
... 2. Reactions with acid – how well something reacts with an acid. Main reaction with and acid results in bubbling. When an acid reacts with another substance, usually hydrogen gas (which is highly explosive) is released 3. Other Reactions – include heat being released, bubbling, strong odor, smoke, f ...
... 2. Reactions with acid – how well something reacts with an acid. Main reaction with and acid results in bubbling. When an acid reacts with another substance, usually hydrogen gas (which is highly explosive) is released 3. Other Reactions – include heat being released, bubbling, strong odor, smoke, f ...
Review
... Disubstituted cyclohexanes: cis/trans-isomerism; comparison of stability (the fewer are the axial substituents, the more stable is the disubstituted cyclohexane. Fused rings (cis and trans decalins) ...
... Disubstituted cyclohexanes: cis/trans-isomerism; comparison of stability (the fewer are the axial substituents, the more stable is the disubstituted cyclohexane. Fused rings (cis and trans decalins) ...
Unit 8 Powerpoint
... 4. Balance the elements one at a time by using coefficients. Begin by balancing elements that appear only once on each side of the equation. Unwritten coefficients are assumed to be 1 Once you are certain you have the correct chemical ...
... 4. Balance the elements one at a time by using coefficients. Begin by balancing elements that appear only once on each side of the equation. Unwritten coefficients are assumed to be 1 Once you are certain you have the correct chemical ...
