File
... The zinc metal is the reducing agent. It donates electrons and it is oxidised. The silver ion is the oxidising agent. It accepts electrons and it is reduced. ...
... The zinc metal is the reducing agent. It donates electrons and it is oxidised. The silver ion is the oxidising agent. It accepts electrons and it is reduced. ...
Chem BIG REVIEW - Jones-wiki
... and properties. Chm.1.2.1 Compare (qualitatively) the relative strengths of ionic, covalent, and metallic bonds. Chm.1.2.2 Infer the type of bond and chemical formula formed between atoms. Chm.1.2.3 Compare inter- and intra- particle forces. Chm.1.2.4 Interpret the name and formula of compounds usin ...
... and properties. Chm.1.2.1 Compare (qualitatively) the relative strengths of ionic, covalent, and metallic bonds. Chm.1.2.2 Infer the type of bond and chemical formula formed between atoms. Chm.1.2.3 Compare inter- and intra- particle forces. Chm.1.2.4 Interpret the name and formula of compounds usin ...
Review Packet - Daigneault Chem.is.try
... j. What charge ion would phosphorus form?_________ 13. What do elements lose or gain when ions are formed? 14. Describe how the periodic table is organized. ...
... j. What charge ion would phosphorus form?_________ 13. What do elements lose or gain when ions are formed? 14. Describe how the periodic table is organized. ...
Specification
... terminology, but those who use other terminology will not be penalised if their answers indicate a clear understanding of the chemistry involved. General Chemistry Symbols for the physical quantities, M, V, H, K, are written in italics (sloping letters). Any following subscripts will be in upright t ...
... terminology, but those who use other terminology will not be penalised if their answers indicate a clear understanding of the chemistry involved. General Chemistry Symbols for the physical quantities, M, V, H, K, are written in italics (sloping letters). Any following subscripts will be in upright t ...
Types o.. - hrsbstaff.ednet.ns.ca
... dry test tube. Set up the ring stand and secure the test tube in the test tube clamp (on a slight angle, facing away from others). Gently heat with a Bunsen burner. (1) What do you observe on the upper part of the test tube? (2) What do you observe in the bottom of the test tube? Continue to heat un ...
... dry test tube. Set up the ring stand and secure the test tube in the test tube clamp (on a slight angle, facing away from others). Gently heat with a Bunsen burner. (1) What do you observe on the upper part of the test tube? (2) What do you observe in the bottom of the test tube? Continue to heat un ...
The chemical elements are fundamental building materials of matter
... • 1.A: All matter is made of atoms. There are a limited number of types of atoms: these are the elements. • 1.B: The atoms of each element have unique structures arising from interactions between electrons and nuclei. • 1.C: Elements display periodicity in their properties when the elements are orga ...
... • 1.A: All matter is made of atoms. There are a limited number of types of atoms: these are the elements. • 1.B: The atoms of each element have unique structures arising from interactions between electrons and nuclei. • 1.C: Elements display periodicity in their properties when the elements are orga ...
Lectures on Chapter 4, Part 2 Powerpoint 97 Document
... To balance electrons we must put a 4 in front of the Ag, since each oxygen looses two electrons, and they come two per O2! That requires us to put a 4 in front of the silver complex, yielding 8 cyanide ions. 4 Ag(s) + 8 CN -(aq) + O2 (g) 4 Ag(CN)2-(aq) + OH -(aq) We have no hydrogens on the reactant ...
... To balance electrons we must put a 4 in front of the Ag, since each oxygen looses two electrons, and they come two per O2! That requires us to put a 4 in front of the silver complex, yielding 8 cyanide ions. 4 Ag(s) + 8 CN -(aq) + O2 (g) 4 Ag(CN)2-(aq) + OH -(aq) We have no hydrogens on the reactant ...
analisis farmasi analisis farmasi anorganik -
... titrations. Sodium chloride is suitable as a primary standard, and is most often used for standardization of the titrant in argentometric titrations. Solid silver nitrate is also available in high enough purity to serve as a primary standard, but it is more expensive. Silver nitrate solutions are ...
... titrations. Sodium chloride is suitable as a primary standard, and is most often used for standardization of the titrant in argentometric titrations. Solid silver nitrate is also available in high enough purity to serve as a primary standard, but it is more expensive. Silver nitrate solutions are ...
CHAP 1 - NCERT books
... to give simpler products. This is a decomposition reaction. Ferrous sulphate crystals (FeSO4, 7H2O) lose water when heated and the colour of the crystals changes. It then decomposes to ferric oxide (Fe2O3), sulphur dioxide (SO2) and sulphur trioxide (SO3). Ferric oxide is a solid, while SO2 and SO3 ...
... to give simpler products. This is a decomposition reaction. Ferrous sulphate crystals (FeSO4, 7H2O) lose water when heated and the colour of the crystals changes. It then decomposes to ferric oxide (Fe2O3), sulphur dioxide (SO2) and sulphur trioxide (SO3). Ferric oxide is a solid, while SO2 and SO3 ...
Exam Review
... b) the attraction the atoms have for electrons d) neither of the preceding factors 23. The particle that results when two or more atoms form covalent bonds is a __. a) single charged atom b) molecule c) polyatomic ion d) b or c 24. The most active __ have the highest electronegativities. a) nonmetal ...
... b) the attraction the atoms have for electrons d) neither of the preceding factors 23. The particle that results when two or more atoms form covalent bonds is a __. a) single charged atom b) molecule c) polyatomic ion d) b or c 24. The most active __ have the highest electronegativities. a) nonmetal ...
Fall Exam 3
... 3s, 3p and 3d orbitals are energetically degenerate because orbital energy depends only on the principal quantum number, n. ...
... 3s, 3p and 3d orbitals are energetically degenerate because orbital energy depends only on the principal quantum number, n. ...
Name: Date: Chemistry 1 – Midterm Review Sheet Unit 1 – Scientific
... e. James Chadwick Atomic Structure 7 . How many protons, electrons, and neutrons respectively does a. b. c. d. e. ...
... e. James Chadwick Atomic Structure 7 . How many protons, electrons, and neutrons respectively does a. b. c. d. e. ...
Glossary (PDF file)
... mixture A combination of two or more substances that can be separated by physical means. Bird seed is a mixture. You can separate the mixture into the different types of seeds it contains. A saltwater solution is a mixture, too. The salt can be separated from the water by evaporating the water. Both ...
... mixture A combination of two or more substances that can be separated by physical means. Bird seed is a mixture. You can separate the mixture into the different types of seeds it contains. A saltwater solution is a mixture, too. The salt can be separated from the water by evaporating the water. Both ...
CHAPTER 2 ATOMS, MOLECULES, AND IONS 1 CHAPTER TWO
... d. Water (H2O) is always 1 g hydrogen for every 8 g of O present, while H2O2 is always 1 g hydrogen for every 16 g of O present. These are distinctly different compounds, each with its own unique relative number and types of atoms present. e. A chemical equation involves a reorganization of the atom ...
... d. Water (H2O) is always 1 g hydrogen for every 8 g of O present, while H2O2 is always 1 g hydrogen for every 16 g of O present. These are distinctly different compounds, each with its own unique relative number and types of atoms present. e. A chemical equation involves a reorganization of the atom ...
Chem101 - Lecture 5 Introduction Introduction
... is taking the electrons away from the other element, even though technically they are being shared. ...
... is taking the electrons away from the other element, even though technically they are being shared. ...
1 Chemical Reactions: Chemistry Word Equations • Write the names
... 2 H2O – H= H= – O= O= Balancing Rules 1. Determine the correct ____________________ for all the reactants and products. 2. Write the _______________________ equation. (Reactants on left, products on right, yield sign in between. If two or more reactants/products are involved, separate their formulas ...
... 2 H2O – H= H= – O= O= Balancing Rules 1. Determine the correct ____________________ for all the reactants and products. 2. Write the _______________________ equation. (Reactants on left, products on right, yield sign in between. If two or more reactants/products are involved, separate their formulas ...
Exam 2-f06 - Clayton State University
... 8.) The equilibrium constant, Kc for the following gas phase reaction is 0.50 at 600°C. A mixture of HCHO, H and CO is introduced into a flask at 600°C. After a short time, analysis of a small amount of the reaction mixture shows the concentration to be [HCHO] = 1.5M, [H2] = 1.2 M and [CO] = 1.0M. W ...
... 8.) The equilibrium constant, Kc for the following gas phase reaction is 0.50 at 600°C. A mixture of HCHO, H and CO is introduced into a flask at 600°C. After a short time, analysis of a small amount of the reaction mixture shows the concentration to be [HCHO] = 1.5M, [H2] = 1.2 M and [CO] = 1.0M. W ...
Periodic Properties of the Elements Effective Nuclear Charge, Zeff
... The splitting of the principle energy level into the s, p, d, and f energy sublevels is best explained by using the concept of “effective” nuclear charge, Zeff. An electron in a higher energy level is “screened” from seeing 100% (all the protons) of the nuclear charge by the electrons in lower energ ...
... The splitting of the principle energy level into the s, p, d, and f energy sublevels is best explained by using the concept of “effective” nuclear charge, Zeff. An electron in a higher energy level is “screened” from seeing 100% (all the protons) of the nuclear charge by the electrons in lower energ ...
2nd Semester Chemistry Terms - Glancy 4TH PERIOD PHYSICAL
... 33. Half-life- the time required for half the atoms in a sample of a radioactive isotope to decay 34. Transmutation- the conversion of an atomic nucleus of one element into an atomic nucleus of another element through a loss or gain in the number of protons 35. Nuclear fission- the splitting of the ...
... 33. Half-life- the time required for half the atoms in a sample of a radioactive isotope to decay 34. Transmutation- the conversion of an atomic nucleus of one element into an atomic nucleus of another element through a loss or gain in the number of protons 35. Nuclear fission- the splitting of the ...
Chemistry Notes
... 3rd The repulsion between the positive nuclei of the2 atoms. There are two main types of bonds which hold compounds together. There are COVALENT and IONIC/ELECTROVALENT compounds. Covalent compounds happen when the electrons are shared by the atoms. Ionic compounds happen when electrons are donated ...
... 3rd The repulsion between the positive nuclei of the2 atoms. There are two main types of bonds which hold compounds together. There are COVALENT and IONIC/ELECTROVALENT compounds. Covalent compounds happen when the electrons are shared by the atoms. Ionic compounds happen when electrons are donated ...
Redox
Redox reactions include all chemical reactions in which atoms have their oxidation state changed; in general, redox reactions involve the transfer of electrons between species. The term ""redox"" comes from two concepts involved with electron transfer: reduction and oxidation. It can be explained in simple terms: Oxidation is the loss of electrons or an increase in oxidation state by a molecule, atom, or ion. Reduction is the gain of electrons or a decrease in oxidation state by a molecule, atom, or ion.Although oxidation reactions are commonly associated with the formation of oxides from oxygen molecules, these are only specific examples of a more general concept of reactions involving electron transfer.Redox reactions, or oxidation-reduction reactions, have a number of similarities to acid–base reactions. Like acid–base reactions, redox reactions are a matched set, that is, there cannot be an oxidation reaction without a reduction reaction happening simultaneously. The oxidation alone and the reduction alone are each called a half-reaction, because two half-reactions always occur together to form a whole reaction. When writing half-reactions, the gained or lost electrons are typically included explicitly in order that the half-reaction be balanced with respect to electric charge.Though sufficient for many purposes, these descriptions are not precisely correct. Oxidation and reduction properly refer to a change in oxidation state — the actual transfer of electrons may never occur. The oxidation state of an atom is the fictitious charge that an atom would have if all bonds between atoms of different elements were 100% ionic. Thus, oxidation is better defined as an increase in oxidation state, and reduction as a decrease in oxidation state. In practice, the transfer of electrons will always cause a change in oxidation state, but there are many reactions that are classed as ""redox"" even though no electron transfer occurs (such as those involving covalent bonds).There are simple redox processes, such as the oxidation of carbon to yield carbon dioxide (CO2) or the reduction of carbon by hydrogen to yield methane (CH4), and more complex processes such as the oxidation of glucose (C6H12O6) in the human body through a series of complex electron transfer processes.