Chapter Two - Blackboard
... Ions and Ionic Compounds • An atom that either gains or loses electron(s) is an ion. • There is no change in the number of protons or neutrons in the nucleus of the atom. • Cation – has a positive charge from loss of electron(s). • Anion – has a negative charge from gain of electron(s). ...
... Ions and Ionic Compounds • An atom that either gains or loses electron(s) is an ion. • There is no change in the number of protons or neutrons in the nucleus of the atom. • Cation – has a positive charge from loss of electron(s). • Anion – has a negative charge from gain of electron(s). ...
Dr David`s Chemistry Test Answers
... 1. It means that reactions can proceed in both the forward and reverse directions. Altering the conditions of the reaction can change the direction of the reaction. 2. Many familiar inorganic reactions like the reaction of hydrochloric acid with sodium hydroxide are not reversible. Similarly, the re ...
... 1. It means that reactions can proceed in both the forward and reverse directions. Altering the conditions of the reaction can change the direction of the reaction. 2. Many familiar inorganic reactions like the reaction of hydrochloric acid with sodium hydroxide are not reversible. Similarly, the re ...
Compounds of Chlorine
... The X-Cl bond is an electron pair covalent bond with a highly polar nature. In this regard, chlorine is similar to uorine. However, there are two key features with regard to chlorine's bonding that dierentiates it from uorine. 1. Unlike uorine, chlorine can form multiple covalent bonds, e.g., Cl ...
... The X-Cl bond is an electron pair covalent bond with a highly polar nature. In this regard, chlorine is similar to uorine. However, there are two key features with regard to chlorine's bonding that dierentiates it from uorine. 1. Unlike uorine, chlorine can form multiple covalent bonds, e.g., Cl ...
Alberta Chemistry 20-30 Sample CAB Questions - McGraw
... central atom is surrounded by three shared pairs of electrons. According to VSEPR theory, these electrons should be as far apart as possible, so that the electrostatic force of repulsion between them is the minimum. In such a case, the three electron pairs arrange themselves in trigonal planar geome ...
... central atom is surrounded by three shared pairs of electrons. According to VSEPR theory, these electrons should be as far apart as possible, so that the electrostatic force of repulsion between them is the minimum. In such a case, the three electron pairs arrange themselves in trigonal planar geome ...
SOLUBILITY RULES FOR IONIC COMPOUNDS IN WATER
... (a) Calculate the moles of each of the ions present in the solution before any reaction has occurred. (b) Calculate the moles of each of the ions present in the solution after any reaction has occurred. (c) Calculate the molarities of each of the ions present in the solution after any reaction has o ...
... (a) Calculate the moles of each of the ions present in the solution before any reaction has occurred. (b) Calculate the moles of each of the ions present in the solution after any reaction has occurred. (c) Calculate the molarities of each of the ions present in the solution after any reaction has o ...
Evaluation of Interaction Effect of Sulfate and Chloride Ions on
... concentrations of the pollution ions such as chloride ions and sulfate ions in sea water. The passive film on the steel surface will be damaged by the aggressive ions and localized corrosion will initiate on the steel surface [3-7]. Once localized corrosion attacks occur, pits or crevices on the ste ...
... concentrations of the pollution ions such as chloride ions and sulfate ions in sea water. The passive film on the steel surface will be damaged by the aggressive ions and localized corrosion will initiate on the steel surface [3-7]. Once localized corrosion attacks occur, pits or crevices on the ste ...
final review cp2 1213 by chapter
... 4. Which of the following statements explains one way a real gas differs from an ideal gas? a.They are the same! b.The particles of a real gas do not attract or repel one another. c.The particles of a real gas have volume. d.The particles of a real gas are in constant random motion. e.The kinetic en ...
... 4. Which of the following statements explains one way a real gas differs from an ideal gas? a.They are the same! b.The particles of a real gas do not attract or repel one another. c.The particles of a real gas have volume. d.The particles of a real gas are in constant random motion. e.The kinetic en ...
Document
... ◦ Each of the bonded atoms maintains its own atomic orbitals, but the electron pair in the overlapping orbitals is shared by both atoms. ◦ The greater the amount of overlap, the stronger the bond. ...
... ◦ Each of the bonded atoms maintains its own atomic orbitals, but the electron pair in the overlapping orbitals is shared by both atoms. ◦ The greater the amount of overlap, the stronger the bond. ...
Homework Solutions Week 6
... When silver sulfate starts to precipitate, 97% of the calcium has precipitated. And when calcium from 97 to 99% precipitated, silver ion goes from 0 to 41% precipitated. 9-17 a) Why do many rivers in Box 9-1. lie on the line [HCO3-] = 2[Ca2+]? According to Box 9-1, the source of calcium in the river ...
... When silver sulfate starts to precipitate, 97% of the calcium has precipitated. And when calcium from 97 to 99% precipitated, silver ion goes from 0 to 41% precipitated. 9-17 a) Why do many rivers in Box 9-1. lie on the line [HCO3-] = 2[Ca2+]? According to Box 9-1, the source of calcium in the river ...
physical setting chemistry
... 11 Compared to a calcium atom, the calcium ion Ca2+ has (1) more protons (3) more electrons (2) fewer protons (4) fewer electrons ...
... 11 Compared to a calcium atom, the calcium ion Ca2+ has (1) more protons (3) more electrons (2) fewer protons (4) fewer electrons ...
advanced chemistry may 2011 marking scheme
... size/mass, hydrogen sulfide is expected to have greater van der Waals forces and hence a higher bp than methane. (1.5) Accept also answer stating that H2S has a net weak dipole moment (0.5) while methane has none and hence the sulfide hase stronger intermolecular forces (1) ...
... size/mass, hydrogen sulfide is expected to have greater van der Waals forces and hence a higher bp than methane. (1.5) Accept also answer stating that H2S has a net weak dipole moment (0.5) while methane has none and hence the sulfide hase stronger intermolecular forces (1) ...
Chapter 3 Notes
... Other important findings: Atoms are electrically neutral, so they must contain a positive charge to cancel it out Since electrons are so small, atoms must contain other particles that account for their mass ...
... Other important findings: Atoms are electrically neutral, so they must contain a positive charge to cancel it out Since electrons are so small, atoms must contain other particles that account for their mass ...
Carboxylic Acids - BSAK Chemistry weebly
... • Acyl chlorides: These contain a -COCl group, e.g. ethanoyl chloride, CH3COCl, or benzoyl chloride, C6H5COCl • Alkyl chlorides: These have a chlorine attached to a carbon chain, e.g. chloroethane, C2H5Cl • Aryl chlorides: These have a chlorine attached directly to a benzene ring, e.g. chlorobenzen ...
... • Acyl chlorides: These contain a -COCl group, e.g. ethanoyl chloride, CH3COCl, or benzoyl chloride, C6H5COCl • Alkyl chlorides: These have a chlorine attached to a carbon chain, e.g. chloroethane, C2H5Cl • Aryl chlorides: These have a chlorine attached directly to a benzene ring, e.g. chlorobenzen ...
Unit 6: Solution Chemistry Content Outline: Basic Solution Chemistry
... A. Ions are “formed” from a molecular compound (covalent bonds) solute by the action of the polar solvent separating the component atoms/molecules. Basically; “Creating ions where there were none originally.” B. They are Hydrated Ions, as are all ions in aqueous solutions. C. The energy released, as ...
... A. Ions are “formed” from a molecular compound (covalent bonds) solute by the action of the polar solvent separating the component atoms/molecules. Basically; “Creating ions where there were none originally.” B. They are Hydrated Ions, as are all ions in aqueous solutions. C. The energy released, as ...
analytical chemistry lecture 8
... Lewis Acids and Bases • The Brønsted base is the species that accepts a proton. • The Brønsted acid is the species that donates a proton. • A Lewis base is a species that donates a pair of electrons. • A Lewis acid is a species that accepts a pair of electrons. ...
... Lewis Acids and Bases • The Brønsted base is the species that accepts a proton. • The Brønsted acid is the species that donates a proton. • A Lewis base is a species that donates a pair of electrons. • A Lewis acid is a species that accepts a pair of electrons. ...
Topic 9 Reduction and Oxidation File
... Anode: Where oxidation takes place. In electrolysis, it is the + electrode and anions are attracted here. Cathode: Where reduction takes place. In electrolysis, it is the – electrode and cations are attracted here. Electrolysis: Passage of electric current through an electrolyte. Amount of discharge ...
... Anode: Where oxidation takes place. In electrolysis, it is the + electrode and anions are attracted here. Cathode: Where reduction takes place. In electrolysis, it is the – electrode and cations are attracted here. Electrolysis: Passage of electric current through an electrolyte. Amount of discharge ...
chemistry - My Study materials – Kumar
... Molecule is the smallest particle of a compound. Atoms exist in free states in the form of molecule. A molecule may be formed by the combination of two or more similar atoms of an element, such asoxygen molecule is formed by the combination of two oxygen atoms, molecule of hydrogen which is formed b ...
... Molecule is the smallest particle of a compound. Atoms exist in free states in the form of molecule. A molecule may be formed by the combination of two or more similar atoms of an element, such asoxygen molecule is formed by the combination of two oxygen atoms, molecule of hydrogen which is formed b ...
Standard C-1: The student will demonstrate an understanding of
... (Vonderbrink) – This experiment uses a microscale technique to determine the total rate law for the oxidation of iodide ions by bromate ion in the presence of an acid. The order of each reaction is found and a rate constant is calculated. The activation energy is also found by repeating the experime ...
... (Vonderbrink) – This experiment uses a microscale technique to determine the total rate law for the oxidation of iodide ions by bromate ion in the presence of an acid. The order of each reaction is found and a rate constant is calculated. The activation energy is also found by repeating the experime ...
Minerals - UNLV Geoscience
... • Mass number is the sum of neutrons plus protons in an atom • An isotope is an atom that exhibits variation in its mass number • Some isotopes have unstable nuclei that emit particles and energy in a process known as radioactive decay ...
... • Mass number is the sum of neutrons plus protons in an atom • An isotope is an atom that exhibits variation in its mass number • Some isotopes have unstable nuclei that emit particles and energy in a process known as radioactive decay ...
Three-dimensional depth profiling of molecular structures
... energy introduced into the solid due to the ion bombardment generates many displacements within a subsurface region, and molecules can be relocated across the original interface. This is a dynamical effect which is caused during the erosion cycles and cannot be avoided in a sputter depth profile. It ...
... energy introduced into the solid due to the ion bombardment generates many displacements within a subsurface region, and molecules can be relocated across the original interface. This is a dynamical effect which is caused during the erosion cycles and cannot be avoided in a sputter depth profile. It ...
Chapter 6 Ionic and Molecular Compounds
... • What do they have in common that could be the cause of this lack of reactivity? • Examination of their electron configurations reveals that the noble gases either have 1. an outermost electron energy level that is completely filled with electrons (He = 2 e- in the 1st energy level, Ne = 8 e- in th ...
... • What do they have in common that could be the cause of this lack of reactivity? • Examination of their electron configurations reveals that the noble gases either have 1. an outermost electron energy level that is completely filled with electrons (He = 2 e- in the 1st energy level, Ne = 8 e- in th ...
Ions
... Chapter 6 Why do atoms react? • It is this arrangement of electrons that imparts stability to the noble gases • All other elements react in order to achieve the same electron configuration as their nearest noble gas neighbor (8 valence e- = octet rule) • Atoms can gain, lose, or share electrons in ...
... Chapter 6 Why do atoms react? • It is this arrangement of electrons that imparts stability to the noble gases • All other elements react in order to achieve the same electron configuration as their nearest noble gas neighbor (8 valence e- = octet rule) • Atoms can gain, lose, or share electrons in ...
OCR answers to the examination questions File
... (b) (i) Add Tollens’ reagent. Heat reaction in a water bath. But-2-enal gives a silver precipitate or silver mirror. (ii) Aldehydes can be oxidised but ketones cannot. (c) (i) CH3CH=CHCH2OH (ii) Redox reaction/reduction or addition. (d) C4H6O + 5O2 → 4CO2 + 3H2O 7 (a) (i) ...
... (b) (i) Add Tollens’ reagent. Heat reaction in a water bath. But-2-enal gives a silver precipitate or silver mirror. (ii) Aldehydes can be oxidised but ketones cannot. (c) (i) CH3CH=CHCH2OH (ii) Redox reaction/reduction or addition. (d) C4H6O + 5O2 → 4CO2 + 3H2O 7 (a) (i) ...
Chemistry (SPA)
... molecular substances, e.g. poly(ethene); sand (silicon dioxide); diamond; graphite in order to deduce their properties (c) compare the bonding and structures of diamond and graphite in order to deduce their properties such as electrical conductivity, lubricating or cutting action (candidates will no ...
... molecular substances, e.g. poly(ethene); sand (silicon dioxide); diamond; graphite in order to deduce their properties (c) compare the bonding and structures of diamond and graphite in order to deduce their properties such as electrical conductivity, lubricating or cutting action (candidates will no ...
Chem 2A Final Review
... Theoretical and Percent Yield 64. The answer that is closest to the number of grams of oxygen in 6.022 1023 molecules of O2 is: ...
... Theoretical and Percent Yield 64. The answer that is closest to the number of grams of oxygen in 6.022 1023 molecules of O2 is: ...