Worksheet to accompany demos on exchange reactions
... Example 1: If Al becomes Al3+ during some chemical change, we say that Al was oxidized. Electrons were taken from it and it became more positive. Example 2: If Cl- ions are converted into Cl2 molecules then we say that Cl- (or simply ‖Cl‖) was oxidized. Each Cl "atom" started off having a NEGATIVE c ...
... Example 1: If Al becomes Al3+ during some chemical change, we say that Al was oxidized. Electrons were taken from it and it became more positive. Example 2: If Cl- ions are converted into Cl2 molecules then we say that Cl- (or simply ‖Cl‖) was oxidized. Each Cl "atom" started off having a NEGATIVE c ...
The Complete Notes - Joliet Junior College
... remembering. An analogy would be this: you read all the books out there on the subject of golf, but don’t get round to swinging a club – what do you think happens when you tee off for the first time? ...
... remembering. An analogy would be this: you read all the books out there on the subject of golf, but don’t get round to swinging a club – what do you think happens when you tee off for the first time? ...
Chemistry 101: The Complete Notes
... remembering. An analogy would be this: you read all the books out there on the subject of golf, but don‟t get round to swinging a club – what do you think happens when you tee off for the first time? ...
... remembering. An analogy would be this: you read all the books out there on the subject of golf, but don‟t get round to swinging a club – what do you think happens when you tee off for the first time? ...
WRITING AP EQUATIONS AP equation sets are found in the free
... AP equation sets are found in the freeresponse section of the AP test. You are given eight equations and you must choose to answer five of these. The equations are of mixed types. The section is worth 15 points and is 15 % of the free response grade. Free response is 55% of the total AP test grade. ...
... AP equation sets are found in the freeresponse section of the AP test. You are given eight equations and you must choose to answer five of these. The equations are of mixed types. The section is worth 15 points and is 15 % of the free response grade. Free response is 55% of the total AP test grade. ...
chapter 1 - Revsworld
... Which of the following statements is/are correct? I. When heat energy flows from a system to the surroundings, we know that the temperature of the system is greater than that of the surroundings. II. Given the thermochemical equation 4NH3(g) + 5O2(g) ------> 4 NO(g) + 6H2O(g) H = -906 kJ, the therm ...
... Which of the following statements is/are correct? I. When heat energy flows from a system to the surroundings, we know that the temperature of the system is greater than that of the surroundings. II. Given the thermochemical equation 4NH3(g) + 5O2(g) ------> 4 NO(g) + 6H2O(g) H = -906 kJ, the therm ...
AP Chem Equations - Speedway High School
... AP equation sets are found in the freeresponse section of the AP test. You are given eight equations and you must choose to answer five of these. The equations are of mixed types. The section is worth 15 points and is 15 % of the free response grade. Free response is 55% of the total AP test grade. ...
... AP equation sets are found in the freeresponse section of the AP test. You are given eight equations and you must choose to answer five of these. The equations are of mixed types. The section is worth 15 points and is 15 % of the free response grade. Free response is 55% of the total AP test grade. ...
A Review of High School Chemistry
... You can also look at the table as a collection of horizontal rows called periods: Row 2 Li, Be, B, C, N, O, F, Ne As we will learn, important trends in chemical and physical properties are observed as we move across a row. For example, ..... ...
... You can also look at the table as a collection of horizontal rows called periods: Row 2 Li, Be, B, C, N, O, F, Ne As we will learn, important trends in chemical and physical properties are observed as we move across a row. For example, ..... ...
GC97F Pretest A - American Chemical Society
... 36. What will be the result when 15.0 mL of 0.040 M lead(II) nitrate is mixed with 15.0 mL of 0.040 M sodium ...
... 36. What will be the result when 15.0 mL of 0.040 M lead(II) nitrate is mixed with 15.0 mL of 0.040 M sodium ...
IB Chemistry Review. Unit I. Topics 2
... An element is in group 14 and period 3 of the periodic table. How many electrons are in the highest occupied energy level of an atom of this element? 51. Which group on the periodic table has the lowest first ionization energies? 52. How many protons, neutrons and electrons are present in each atom ...
... An element is in group 14 and period 3 of the periodic table. How many electrons are in the highest occupied energy level of an atom of this element? 51. Which group on the periodic table has the lowest first ionization energies? 52. How many protons, neutrons and electrons are present in each atom ...
- skv institute
... This equation is known as van der Waals equation where a and b are constant and they depend on the characteristics of gas. The constant ‘a’ indicates the measurement of intermolecular attractive forces which is free from effect of temperature and pressure. 24. Which factor is independent of temper ...
... This equation is known as van der Waals equation where a and b are constant and they depend on the characteristics of gas. The constant ‘a’ indicates the measurement of intermolecular attractive forces which is free from effect of temperature and pressure. 24. Which factor is independent of temper ...
Topic 1 Review - Capital High School
... An element is in group 14 and period 3 of the periodic table. How many electrons are in the highest occupied energy level of an atom of this element? 51. Which group on the periodic table has the lowest first ionization energies? 52. How many protons, neutrons and electrons are present in each atom ...
... An element is in group 14 and period 3 of the periodic table. How many electrons are in the highest occupied energy level of an atom of this element? 51. Which group on the periodic table has the lowest first ionization energies? 52. How many protons, neutrons and electrons are present in each atom ...
1.9 M - Thierry Karsenti
... 2. Atom: the smallest particle of an element that retains the identify and properties of the element and can take part in a chemical change. 3. Atomic number (symbol Z): the number of protons in the nucleus of each atom. 4. Compound: a substance that is formed when two or more elements combine chemi ...
... 2. Atom: the smallest particle of an element that retains the identify and properties of the element and can take part in a chemical change. 3. Atomic number (symbol Z): the number of protons in the nucleus of each atom. 4. Compound: a substance that is formed when two or more elements combine chemi ...
Practice Exam II
... Note: p.p. 74-80. This is the definition. Polar covalent compounds are molecular compounds. Among which the nonmetal atoms do not share electrons evenly. You must use molecular geometry (i.e. VSEPR model or VSEPR rule) to determine it. Rule of thumb, if a molecular compound does not possess symmetry ...
... Note: p.p. 74-80. This is the definition. Polar covalent compounds are molecular compounds. Among which the nonmetal atoms do not share electrons evenly. You must use molecular geometry (i.e. VSEPR model or VSEPR rule) to determine it. Rule of thumb, if a molecular compound does not possess symmetry ...
Chemical Bonding and Molecular Geometry
... a neutral atom loses one or more electrons from its valence shell, and an anion (a negative ion) forms when a neutral atom gains one or more electrons in its valence shell. Compounds composed of ions are called ionic compounds (or salts), and their constituent ions are held together by ionic bonds: ...
... a neutral atom loses one or more electrons from its valence shell, and an anion (a negative ion) forms when a neutral atom gains one or more electrons in its valence shell. Compounds composed of ions are called ionic compounds (or salts), and their constituent ions are held together by ionic bonds: ...
solid metal
... heterogeneous mixture vary within the sample (oil and water). The properties of a homogeneous mixture are constant (salt solution). A pure substance may be either a compound (water) or an element (gold). Left to right: oil and water; NaCl solution; H2O; and gold nugget. ...
... heterogeneous mixture vary within the sample (oil and water). The properties of a homogeneous mixture are constant (salt solution). A pure substance may be either a compound (water) or an element (gold). Left to right: oil and water; NaCl solution; H2O; and gold nugget. ...
Electrochemistry Lecture
... exception are O, which never has an Ox# of +6 and F, which never has an Ox# of +7.) For nonmetals, (brown) and metalloids (green) the A group number minus 8 gives the lowest possible oxidation number ...
... exception are O, which never has an Ox# of +6 and F, which never has an Ox# of +7.) For nonmetals, (brown) and metalloids (green) the A group number minus 8 gives the lowest possible oxidation number ...
Practice Exam II
... Note: p.p. 74-80. This is the definition. Polar covalent compounds are molecular compounds. Among which the nonmetal atoms do not share electrons evenly. You must use molecular geometry (i.e. VSEPR model or VSEPR rule) to determine it. Rule of thumb, if a molecular compound does not possess symmetry ...
... Note: p.p. 74-80. This is the definition. Polar covalent compounds are molecular compounds. Among which the nonmetal atoms do not share electrons evenly. You must use molecular geometry (i.e. VSEPR model or VSEPR rule) to determine it. Rule of thumb, if a molecular compound does not possess symmetry ...
Chap 3 - HCC Learning Web
... Note: p.p. 74-80. This is the definition. Polar covalent compounds are molecular compounds. Among which the nonmetal atoms do not share electrons evenly. You must use molecular geometry (i.e. VSEPR model or VSEPR rule) to determine it. Rule of thumb, if a molecular compound does not possess symmetry ...
... Note: p.p. 74-80. This is the definition. Polar covalent compounds are molecular compounds. Among which the nonmetal atoms do not share electrons evenly. You must use molecular geometry (i.e. VSEPR model or VSEPR rule) to determine it. Rule of thumb, if a molecular compound does not possess symmetry ...
N5 Chemistry Course Specification 2017-18 session
... Isotopes are defined as atoms with the same atomic number but different mass numbers, or as atoms with the same number of protons but different numbers of neutrons. Nuclide notation is used to show the atomic number, mass number (and charge) of atoms (ions) from which the number of protons, electron ...
... Isotopes are defined as atoms with the same atomic number but different mass numbers, or as atoms with the same number of protons but different numbers of neutrons. Nuclide notation is used to show the atomic number, mass number (and charge) of atoms (ions) from which the number of protons, electron ...
Writing Chemical Formulas
... Remember - subscripts of 1 are never written in a formula! Identify the oxidation number for the element making up each half (positive & negative) of the compound. Use the oxidation number (without the plus or minus) for each half as the subscript for the other half. Do not write a subscript of 1. R ...
... Remember - subscripts of 1 are never written in a formula! Identify the oxidation number for the element making up each half (positive & negative) of the compound. Use the oxidation number (without the plus or minus) for each half as the subscript for the other half. Do not write a subscript of 1. R ...
Honors Chemistry / SAT II
... 2143. Neon light, when viewed through a prism or a diffraction grating, shows only certain colors of visible light. This is an example of a (A) bright line spectrum (D) visible spectrum (B) continuous spectrum (E) absorbtion spectrum (C) infrared spectrum 2264. A single burst of visible light is rel ...
... 2143. Neon light, when viewed through a prism or a diffraction grating, shows only certain colors of visible light. This is an example of a (A) bright line spectrum (D) visible spectrum (B) continuous spectrum (E) absorbtion spectrum (C) infrared spectrum 2264. A single burst of visible light is rel ...
Chapter 2: Atoms, Molecules and Ions
... • Understand the difference between molecular and ionic compounds • Become proficient in inorganic nomenclature: names and formulas of compounds (LAB) • Be able to name and write formulas for a few types of simple organic compounds. Daley/Larson ...
... • Understand the difference between molecular and ionic compounds • Become proficient in inorganic nomenclature: names and formulas of compounds (LAB) • Be able to name and write formulas for a few types of simple organic compounds. Daley/Larson ...
BTEC National in Applied Science Unit 01 Sample redacted web
... This can be represented by a simple Bohr diagram, as shown in Figure 1.1. This is the simple version of electron structure you will have seen at Key Stage 4. Under Bohr’s theory, an electron’s shells can be imagined as orbiting circles around the nucleus. However, it is more complicated than this. E ...
... This can be represented by a simple Bohr diagram, as shown in Figure 1.1. This is the simple version of electron structure you will have seen at Key Stage 4. Under Bohr’s theory, an electron’s shells can be imagined as orbiting circles around the nucleus. However, it is more complicated than this. E ...
Year Review Booklet (optional)
... Bohr came up with an atomic model to explain the spectrum of ______________________. He said that the atom has certain _______________ levels which are allowed. These levels corresponded to ____________________ in which electrons move. If an electron absorbs a certain photon of energy, it will jump ...
... Bohr came up with an atomic model to explain the spectrum of ______________________. He said that the atom has certain _______________ levels which are allowed. These levels corresponded to ____________________ in which electrons move. If an electron absorbs a certain photon of energy, it will jump ...