REDOX EQUILIBRIA SL - chemistryatdulwich
... reduced. Therefore the reactivity of a metal or non-metal is about how easily it is oxidized or reduced or how strong a reducing or oxidizing agent it is. The strength of an oxidising or reducing agent can be found by using it in displacement reactions with other oxidising or reducing agents e.g. li ...
... reduced. Therefore the reactivity of a metal or non-metal is about how easily it is oxidized or reduced or how strong a reducing or oxidizing agent it is. The strength of an oxidising or reducing agent can be found by using it in displacement reactions with other oxidising or reducing agents e.g. li ...
avogadro exam 2012 - University of Waterloo
... 26 Which of the following atoms has the greatest number of unpaired electrons in its ground electronic state? A ...
... 26 Which of the following atoms has the greatest number of unpaired electrons in its ground electronic state? A ...
chem A exercise package C
... Many formulas for substances cannot be explained in terms of ionic bonding. Consider the substance Cl2O. Both the chlorine and the oxygen atom need more electrons for a stable electron population. A model proposed that would allow both atoms to gain electrons is shown in the diagram on this page. Th ...
... Many formulas for substances cannot be explained in terms of ionic bonding. Consider the substance Cl2O. Both the chlorine and the oxygen atom need more electrons for a stable electron population. A model proposed that would allow both atoms to gain electrons is shown in the diagram on this page. Th ...
xmas review questions 01516 with hints
... 5. Represents an atom in an excited state Recall that atoms fill their orbitals according to the aufbau rule? ...
... 5. Represents an atom in an excited state Recall that atoms fill their orbitals according to the aufbau rule? ...
Revision IB2 Topic 1
... After heating, the stream of hydrogen gas was maintained until the apparatus had cooled. The following results were obtained. Mass of empty dish = 13.80 g Mass of dish and contents before heating = 21.75 g Mass of dish and contents after heating and leaving to cool = 20.15 g ...
... After heating, the stream of hydrogen gas was maintained until the apparatus had cooled. The following results were obtained. Mass of empty dish = 13.80 g Mass of dish and contents before heating = 21.75 g Mass of dish and contents after heating and leaving to cool = 20.15 g ...
8872 Chemistry H1 syllabus for 2016
... 10. bring together knowledge, principles and concepts from different areas of chemistry, and apply them in a particular context 11. use chemical skills in contexts which bring together different areas of the subject. These assessment objectives cannot be precisely specified in the Syllabus content b ...
... 10. bring together knowledge, principles and concepts from different areas of chemistry, and apply them in a particular context 11. use chemical skills in contexts which bring together different areas of the subject. These assessment objectives cannot be precisely specified in the Syllabus content b ...
GCSE - WordPress.com
... How many of each of the fundamental particles are present in the nucleus of Ne-22? What is the electron configuration of Ne-20? Why is neon a very unreactive element? Explain the meaning of the word isotope. What is the difference between the two isotopes of Neon? Calculate the relative atomic mass ...
... How many of each of the fundamental particles are present in the nucleus of Ne-22? What is the electron configuration of Ne-20? Why is neon a very unreactive element? Explain the meaning of the word isotope. What is the difference between the two isotopes of Neon? Calculate the relative atomic mass ...
chemistry
... the front of your answer booklet. All answers in your answer booklet should be written in pen, except for graphs and drawings, which should be done in pencil. You may use scrap paper to work out the answers to the questions, but be sure to record all your answers on your separate answer sheet or in ...
... the front of your answer booklet. All answers in your answer booklet should be written in pen, except for graphs and drawings, which should be done in pencil. You may use scrap paper to work out the answers to the questions, but be sure to record all your answers on your separate answer sheet or in ...
Name - TeacherWeb
... The elements in Group 18 are known as the noble gases. They do not usually form compounds because they do not like to gain, lose, or share electrons. All of the noble gases exist in the Earth’s atmosphere, but only in small amounts. ...
... The elements in Group 18 are known as the noble gases. They do not usually form compounds because they do not like to gain, lose, or share electrons. All of the noble gases exist in the Earth’s atmosphere, but only in small amounts. ...
![Homework Booklet [4,S]](http://s1.studyres.com/store/data/010355871_1-63c750e3d1b58eaaebbb3f5d45651c44-300x300.png)
Homework Booklet [4,S]
... How many of each of the fundamental particles are present in the nucleus of Ne-22? What is the electron configuration of Ne-20? Why is neon a very unreactive element? Explain the meaning of the word isotope. What is the difference between the two isotopes of Neon? Calculate the relative atomic mass ...
... How many of each of the fundamental particles are present in the nucleus of Ne-22? What is the electron configuration of Ne-20? Why is neon a very unreactive element? Explain the meaning of the word isotope. What is the difference between the two isotopes of Neon? Calculate the relative atomic mass ...
Date - PetyaPisanScienceAQ
... 1) What kind of evidence should you look for when determining whether you were observing a physical or a chemical property? Be specific in your description of what general types of observations you would look for during an experiment (5 K/U) Physical property: Traditionally, metals have certain char ...
... 1) What kind of evidence should you look for when determining whether you were observing a physical or a chemical property? Be specific in your description of what general types of observations you would look for during an experiment (5 K/U) Physical property: Traditionally, metals have certain char ...
UNIT 2 ATOMS, MATTER, AND THE MOLE
... compounds with different proportions of the same elements. 1. EX: water and hydrogen peroxide both contain hydrogen and oxygen in definite composition, but in a different proportion to each other. 2. Methane (CH4) and butane (C4H10) are also good examples. 3. What are two compounds that contain carb ...
... compounds with different proportions of the same elements. 1. EX: water and hydrogen peroxide both contain hydrogen and oxygen in definite composition, but in a different proportion to each other. 2. Methane (CH4) and butane (C4H10) are also good examples. 3. What are two compounds that contain carb ...
The goals of this chapter are to understand
... FCC lattices with lattice parameters given in Appendix B of 0.40786 nm for gold and 0.40862 nm for silver. The free-electron density for silver is slightly less than that for gold. However, the electrical conductivity of the two elements is significantly different. Silver has an electrical conductiv ...
... FCC lattices with lattice parameters given in Appendix B of 0.40786 nm for gold and 0.40862 nm for silver. The free-electron density for silver is slightly less than that for gold. However, the electrical conductivity of the two elements is significantly different. Silver has an electrical conductiv ...
CHAPTER 9 HYDROGEN Position of Hydrogen in Periodic Table
... These are the compounds of H2 formed with most of the s-block elements which are highly electro positive. (ii) Covalent or molecular hydrides:-These are the compounds of hydrogen formed with most of the p-block elements [a]Electron deficient:- The hydrides which do not have sufficient number of el ...
... These are the compounds of H2 formed with most of the s-block elements which are highly electro positive. (ii) Covalent or molecular hydrides:-These are the compounds of hydrogen formed with most of the p-block elements [a]Electron deficient:- The hydrides which do not have sufficient number of el ...
REDOX EQUILIBRIA SL - chemistryatdulwich
... As the potassium atom, K, is a strong reducing agent, its ion, K+, is therefore a very weak oxidising agent. Potassium atoms will displace/reduce ions of less reactive metals. Also, in the series above Au+ (gold ion) is the strongest oxidising agent as Au (gold atom) is the weakest reducing agent. ...
... As the potassium atom, K, is a strong reducing agent, its ion, K+, is therefore a very weak oxidising agent. Potassium atoms will displace/reduce ions of less reactive metals. Also, in the series above Au+ (gold ion) is the strongest oxidising agent as Au (gold atom) is the weakest reducing agent. ...
Lesson 2a - Freeman Public Schools
... Copyright © 2009 Pearson Education, Inc., publishing as Benjamin Cummings ...
... Copyright © 2009 Pearson Education, Inc., publishing as Benjamin Cummings ...
Chemistry - Birkenhead School
... There are about 100 different elements. Elements are shown in the periodic table. Compounds are formed from elements by chemical reactions. Compounds contain two or more elements chemically combined in fixed proportions and can be represented by formulae using the symbols of the atoms from which the ...
... There are about 100 different elements. Elements are shown in the periodic table. Compounds are formed from elements by chemical reactions. Compounds contain two or more elements chemically combined in fixed proportions and can be represented by formulae using the symbols of the atoms from which the ...
Elements, Compounds, and Chemical Equations
... 1. Counting Subatomic Particles: Use the periodic table • The atomic number is the same as the number of protons. • The number of protons is the same as the number of electrons. • The mass number is the protons added to the neutrons. ...
... 1. Counting Subatomic Particles: Use the periodic table • The atomic number is the same as the number of protons. • The number of protons is the same as the number of electrons. • The mass number is the protons added to the neutrons. ...
CHAPTER 1 Differentiate b/w Mendeleev`s periodic law and modern
... Ionic hydrides just like other ionic compounds are hard crystalline substances and they should have high melting and boiling points. In the molten state, free ions are present which conduct the electrical current. Why the melting and boiling points of covalent hydrides of group IV-A increase from up ...
... Ionic hydrides just like other ionic compounds are hard crystalline substances and they should have high melting and boiling points. In the molten state, free ions are present which conduct the electrical current. Why the melting and boiling points of covalent hydrides of group IV-A increase from up ...
chemical bonding and molecular structure
... Matter is made up of one or different type of elements. Under normal conditions no other element exists as an independent atom in nature, except noble gases. However, a group of atoms is found to exist together as one species having characteristic properties. Such a group of atoms is called a molecu ...
... Matter is made up of one or different type of elements. Under normal conditions no other element exists as an independent atom in nature, except noble gases. However, a group of atoms is found to exist together as one species having characteristic properties. Such a group of atoms is called a molecu ...
Answers to examination questions
... Isotopes are two or more atoms of the same element with different numbers of neutrons (and therefore different relative isotopic masses). They have the same numbers of protons and hence the same number of electrons. ...
... Isotopes are two or more atoms of the same element with different numbers of neutrons (and therefore different relative isotopic masses). They have the same numbers of protons and hence the same number of electrons. ...
Chemical Compounds
... ___________________________________ It’s really a continuum There’s nothing magical about crossing the imaginary line between “metals” and “nonmetals”. The properties gradually change. ...
... ___________________________________ It’s really a continuum There’s nothing magical about crossing the imaginary line between “metals” and “nonmetals”. The properties gradually change. ...
Chapter 5 notes
... Atoms contain both positive and negative charges. When they come Together they arrange themselves so that the attractive forges of opposite Charges is greater than the repulsive forces of like charges ...
... Atoms contain both positive and negative charges. When they come Together they arrange themselves so that the attractive forges of opposite Charges is greater than the repulsive forces of like charges ...