chapter 4 powerpoint
... The Hydrogen-Atom Line-Emission Spectrum, continued • When investigators passed electric current through a vacuum tube containing hydrogen gas at low pressure, they observed the emission of a characteristic pinkish glow. • When a narrow beam of the emitted light was shined through a prism, it was se ...
... The Hydrogen-Atom Line-Emission Spectrum, continued • When investigators passed electric current through a vacuum tube containing hydrogen gas at low pressure, they observed the emission of a characteristic pinkish glow. • When a narrow beam of the emitted light was shined through a prism, it was se ...
Electron Configurations
... Exceptions to the Aufbau Principle • Remember d and f orbitals require LARGE amounts of energy • If we can’t fill these sublevels, then the next best thing is to be HALF full (one electron in each orbital in the sublevel) • There are many exceptions, but the most common ones are d4 and d9 For the pu ...
... Exceptions to the Aufbau Principle • Remember d and f orbitals require LARGE amounts of energy • If we can’t fill these sublevels, then the next best thing is to be HALF full (one electron in each orbital in the sublevel) • There are many exceptions, but the most common ones are d4 and d9 For the pu ...
atomic theory - chemistryatdulwich
... approximately one hundred thousand times greater than the radius of the nucleus. The nucleus has a very high density. This is because the protons, which all have ‘like’ charges are drawn very close together by very powerful nuclear forces. These forces need to be powerful as they Topic2atomictheory ...
... approximately one hundred thousand times greater than the radius of the nucleus. The nucleus has a very high density. This is because the protons, which all have ‘like’ charges are drawn very close together by very powerful nuclear forces. These forces need to be powerful as they Topic2atomictheory ...
Ch 2 ppt- part A
... • Isotopes are atoms of the same element with different masses. • Isotopes have different numbers of neutrons. ...
... • Isotopes are atoms of the same element with different masses. • Isotopes have different numbers of neutrons. ...
Measuring Energy Changes In A Chemical Reaction Sept. 2016
... (exothermic reactions) OR absorbs energy from the surrounding (endothermic ...
... (exothermic reactions) OR absorbs energy from the surrounding (endothermic ...
Homework Exercises
... Name substance X Write a balanced equation for the reaction What is meant by an excess of one chemical in a chemical reaction? When the reaction is finished, unreacted copper(II) carbonate would be left in the beaker. What else would be observed indicating that the reaction is over? (e) Draw a label ...
... Name substance X Write a balanced equation for the reaction What is meant by an excess of one chemical in a chemical reaction? When the reaction is finished, unreacted copper(II) carbonate would be left in the beaker. What else would be observed indicating that the reaction is over? (e) Draw a label ...
Key To T2 Review For Final Study Guide File - District 196 e
... The limiting reactant is the reactant that runs out first in a chemical reaction, therefore determining the amount of product produced. 9. What is an excess reactant? The reactant that there is more than enough of to complete the limiting reactant. Some of this reactant will be left over when the re ...
... The limiting reactant is the reactant that runs out first in a chemical reaction, therefore determining the amount of product produced. 9. What is an excess reactant? The reactant that there is more than enough of to complete the limiting reactant. Some of this reactant will be left over when the re ...
Chapter 11
... repelled from each other! Something must serve as the glue to hold the nucleus together – The “strong” nuclear force: overcomes the electrical ...
... repelled from each other! Something must serve as the glue to hold the nucleus together – The “strong” nuclear force: overcomes the electrical ...
CHEM1411,chapter 1-2-3 exercises 1. In 1828, the diameter of the
... 18. When octane (C8H18) is burned in a particular internal combustion engine, the yield of products (carbon dioxide and water) is 93%. What mass of carbon dioxide will be produced in this engine when 15.0 g of octane is burned with 15.0 g of oxygen gas? A) 13. g B) 12. g C) 21 g D) 54. g E) 43. g ...
... 18. When octane (C8H18) is burned in a particular internal combustion engine, the yield of products (carbon dioxide and water) is 93%. What mass of carbon dioxide will be produced in this engine when 15.0 g of octane is burned with 15.0 g of oxygen gas? A) 13. g B) 12. g C) 21 g D) 54. g E) 43. g ...
Chapter 6 Chemical Reactions: An Introduction
... • Shorthand way of describing a reaction • Provides information about the reaction: – Formulas of reactants and products – States of reactants and products – Relative numbers of reactant and product molecules that are required – Can be used to determine weights of reactants used and of products that ...
... • Shorthand way of describing a reaction • Provides information about the reaction: – Formulas of reactants and products – States of reactants and products – Relative numbers of reactant and product molecules that are required – Can be used to determine weights of reactants used and of products that ...
Chem 2A Final Review
... Ans. 4.00 12. When 35.6 L of ammonia is reacted with oxygen at 1.0 atm at 25 C, the answer closest to the number of grams of H2O produced in the unbalanced equations is: 4NH3 + 5O2 4NO + ...
... Ans. 4.00 12. When 35.6 L of ammonia is reacted with oxygen at 1.0 atm at 25 C, the answer closest to the number of grams of H2O produced in the unbalanced equations is: 4NH3 + 5O2 4NO + ...
atomic number - iGCSE Science Courses
... stable ones. The other isotopes tend to be radioactive, which means that they decay into other elements and give out radiation. This is where all radioactivity comes from – unstable radioactive isotopes undergoing nuclear decay and spitting out high energy particles. ...
... stable ones. The other isotopes tend to be radioactive, which means that they decay into other elements and give out radiation. This is where all radioactivity comes from – unstable radioactive isotopes undergoing nuclear decay and spitting out high energy particles. ...
9182747 Chemistry Ja02
... (1) They are determined by the number of neutrons. (2) They are determined by the number of electrons in the first shell. (3) They change in a generally systematic ...
... (1) They are determined by the number of neutrons. (2) They are determined by the number of electrons in the first shell. (3) They change in a generally systematic ...
Chapter 3
... 24. What is the theoretical yield of chromium that can be produced by the reaction of 40.0 g of Cr2O3 with 8.00 g of aluminum according to the chemical equation below? 2Al + Cr2O3 Al2O3 + 2Cr A. 7.7 g B. 15.4 g * C. 27.3 g D. 30.8 g E. 49.9 g 25. Hydrogen fluoride is used in the manufacture of Fr ...
... 24. What is the theoretical yield of chromium that can be produced by the reaction of 40.0 g of Cr2O3 with 8.00 g of aluminum according to the chemical equation below? 2Al + Cr2O3 Al2O3 + 2Cr A. 7.7 g B. 15.4 g * C. 27.3 g D. 30.8 g E. 49.9 g 25. Hydrogen fluoride is used in the manufacture of Fr ...
Redox I
... Mg got oxidized. Fe2+ was the oxidizing agent. •Fe goes from an ion to an element: Fe2+ Fe Fe2+ got reduced. Mg was the reducing agent. ...
... Mg got oxidized. Fe2+ was the oxidizing agent. •Fe goes from an ion to an element: Fe2+ Fe Fe2+ got reduced. Mg was the reducing agent. ...
A Review of High School Chemistry
... The Periodic Table Long about 1870, Mendeleev was inspired to put together a tabulation of the known elements in such a way as to describe in a periodic way their physical and chemical properties. The modern version of Mendeleev’s Periodic Table is an attractive addition to most science lecture hal ...
... The Periodic Table Long about 1870, Mendeleev was inspired to put together a tabulation of the known elements in such a way as to describe in a periodic way their physical and chemical properties. The modern version of Mendeleev’s Periodic Table is an attractive addition to most science lecture hal ...
Ch 11 Chemical Reactions
... –Describe the five general types of reactions –Predict the products of the five general types of reactions ...
... –Describe the five general types of reactions –Predict the products of the five general types of reactions ...
2nd Semester Final Exam Review
... 5. What is the effect on the number of dissolved particles on: vapor pressure, freezing point, and boiling point? Colligative properties 6. Which of the following will have the higher boiling point, .100M NaNO 3 or .100 M MgBr2? 7. Write the dissociation equations for the following compounds in wate ...
... 5. What is the effect on the number of dissolved particles on: vapor pressure, freezing point, and boiling point? Colligative properties 6. Which of the following will have the higher boiling point, .100M NaNO 3 or .100 M MgBr2? 7. Write the dissociation equations for the following compounds in wate ...
Vocabulary List # 2 Covalent Bonding
... Attractions between molecules caused by the electron motion on one molecule affecting the electron motion on the other through electrical forces; these are the weakest interactions between molecules. ...
... Attractions between molecules caused by the electron motion on one molecule affecting the electron motion on the other through electrical forces; these are the weakest interactions between molecules. ...
Chapter 5
... Wavelike Properties of Matter Louis de Broglie in 1924 suggested that, if light can behave in some respects like matter, then perhaps matter can behave in some respects like light. In other words, perhaps matter is wavelike as well as particlelike. ...
... Wavelike Properties of Matter Louis de Broglie in 1924 suggested that, if light can behave in some respects like matter, then perhaps matter can behave in some respects like light. In other words, perhaps matter is wavelike as well as particlelike. ...
The History of Radioactivity
... determined that: • The atom is mostly ‘space’ • The atom has a dense, positive nucleus • Inside the nucleus a positively charged particle called a proton and particle without a charge called a neutron ...
... determined that: • The atom is mostly ‘space’ • The atom has a dense, positive nucleus • Inside the nucleus a positively charged particle called a proton and particle without a charge called a neutron ...
Atomic structure
... which was only a few atoms thick. they found that although most of them passed through. About 1 in 10,000 hit ...
... which was only a few atoms thick. they found that although most of them passed through. About 1 in 10,000 hit ...