astrochemistry_caselli
... A + B AB* The molecule AB* must loose the internal energy. In the Earth atmosphere, where the number of particles per cubic centimeter (cc) is very large (~1019), the molecule looses its energy via three-body reactions: ...
... A + B AB* The molecule AB* must loose the internal energy. In the Earth atmosphere, where the number of particles per cubic centimeter (cc) is very large (~1019), the molecule looses its energy via three-body reactions: ...
File - Science with Mr. Louie
... significant figures. Thus, the final answer is 1.5 x 1012 When dividing numbers in scientific notation, SUBTRACT the denominator’s power of 10 value from the numerator’s power of 10 value. For example: (2.898 x 1012) ÷ (3.45 x 1015) = 0.840 x 10-3 (I had to add the zero at the end to get the three s ...
... significant figures. Thus, the final answer is 1.5 x 1012 When dividing numbers in scientific notation, SUBTRACT the denominator’s power of 10 value from the numerator’s power of 10 value. For example: (2.898 x 1012) ÷ (3.45 x 1015) = 0.840 x 10-3 (I had to add the zero at the end to get the three s ...
Chemistry 11 – Course Review
... Consider the following ideas: Compounds are made up of molecules which are combinations of atoms All atoms of an element are the same Atoms of different elements are different Atoms are indivisible particles Who came up with these ideas? ______________________ He called the ideas, the ______ ...
... Consider the following ideas: Compounds are made up of molecules which are combinations of atoms All atoms of an element are the same Atoms of different elements are different Atoms are indivisible particles Who came up with these ideas? ______________________ He called the ideas, the ______ ...
Unit 3 - High School Chemistry
... 2. The smallest unit of an Ionic Compound is called a “Unit Cell”. Because of the regular crystal structure of an ionic compound, they are not referred to as molecules. 3. Ionic solids are generally High Melting Points (typically 300°C to 1000°C). Since a strong force can only shatter the crystal bu ...
... 2. The smallest unit of an Ionic Compound is called a “Unit Cell”. Because of the regular crystal structure of an ionic compound, they are not referred to as molecules. 3. Ionic solids are generally High Melting Points (typically 300°C to 1000°C). Since a strong force can only shatter the crystal bu ...
Chapter 2 ATOMS AND ELEMENTS
... Instructor: This PowerLecture contains two PowerPoint presentations: one with lecture content and art from the text, the other with videos and animations. For animations and videos to run properly, we recommend that you run this PowerPoint presentation from the PowerLecture disc inserted in your com ...
... Instructor: This PowerLecture contains two PowerPoint presentations: one with lecture content and art from the text, the other with videos and animations. For animations and videos to run properly, we recommend that you run this PowerPoint presentation from the PowerLecture disc inserted in your com ...
Week of Sept. 20
... · 9 Valence Orbitals: upper limit of 9 bonds may be formed. In most cases a maximum of 6 σ bonds are formed and the remaining d orbitals are non-bonding. It's these non-bonding d orbitals that give TM complexes many of their unique properties. · 18 electron rule: upper limit of 18 e- can be accomoda ...
... · 9 Valence Orbitals: upper limit of 9 bonds may be formed. In most cases a maximum of 6 σ bonds are formed and the remaining d orbitals are non-bonding. It's these non-bonding d orbitals that give TM complexes many of their unique properties. · 18 electron rule: upper limit of 18 e- can be accomoda ...
RedOx notes:
... Continue with elements picking their preferred charges (work from outside columns to the inner “valley of confusion”) until there is only one left; if the element is last to choose it must have the charge that makes everything else sum to zero. If you don’t choose first you might not get your first ...
... Continue with elements picking their preferred charges (work from outside columns to the inner “valley of confusion”) until there is only one left; if the element is last to choose it must have the charge that makes everything else sum to zero. If you don’t choose first you might not get your first ...
Chemistry 20 Lesson 36 – The Whole Enchilada
... Explain the following observations in terms of intra/intermolecular bonds: a. The boiling point of fluorine is significantly less than that of chlorine. ...
... Explain the following observations in terms of intra/intermolecular bonds: a. The boiling point of fluorine is significantly less than that of chlorine. ...
Enthalpy
... [Section 6.10 of textbook will not be covered in this course.] Enthalpies of Physical Change The molecules in a solid are vibrating in place. Temperature is a measure of the average kinetic energy that the molecules. As the temperature rises, more kinetic energy is added and the molecules vibrate mo ...
... [Section 6.10 of textbook will not be covered in this course.] Enthalpies of Physical Change The molecules in a solid are vibrating in place. Temperature is a measure of the average kinetic energy that the molecules. As the temperature rises, more kinetic energy is added and the molecules vibrate mo ...
The Structure of Matter
... charges should settle to an equilibrium and then vibrate around that position, which causes the emission of the spectrum lines. [5] Jeans then goes on to state that Earnshaw!s Theorem proved that there is no position in which there will exist a stable equilibrium. If this is true, the point charges ...
... charges should settle to an equilibrium and then vibrate around that position, which causes the emission of the spectrum lines. [5] Jeans then goes on to state that Earnshaw!s Theorem proved that there is no position in which there will exist a stable equilibrium. If this is true, the point charges ...
Unit 1 Student Booklet
... reactant and product. 2. Write each element underneath the equation and keep a tally of the number of atoms of each element. 3. Use coefficients to balance metals first, then non-metals. 4. Leave single elements and diatomic molecules to balance last. 5. If possible, reduce the coefficients to the l ...
... reactant and product. 2. Write each element underneath the equation and keep a tally of the number of atoms of each element. 3. Use coefficients to balance metals first, then non-metals. 4. Leave single elements and diatomic molecules to balance last. 5. If possible, reduce the coefficients to the l ...
Syllabus of the International Chemistry Olympiad
... This booklet contains a series of preparatory problems for the International Chemistry Olympiad in 2002. Most of the problems refer to level 3 mentioned in the Syllabus of the International Chemistry Olympiad. Topics from various areas of chemistry are covered. The scientific committee selected prob ...
... This booklet contains a series of preparatory problems for the International Chemistry Olympiad in 2002. Most of the problems refer to level 3 mentioned in the Syllabus of the International Chemistry Olympiad. Topics from various areas of chemistry are covered. The scientific committee selected prob ...
chemistry 102 fall 2001 part 1
... 17&18. For a reaction where ∆H is +255 kJ/mol rxn and ∆S = +52 J/K, _______. (a) the reaction is spontaneous at all temperatures. (b) the reaction is nonspontaneous at all temperatures (c) the reaction is spontaneous only at temperatures above a certain value. (d) the reaction is spontaneous only at ...
... 17&18. For a reaction where ∆H is +255 kJ/mol rxn and ∆S = +52 J/K, _______. (a) the reaction is spontaneous at all temperatures. (b) the reaction is nonspontaneous at all temperatures (c) the reaction is spontaneous only at temperatures above a certain value. (d) the reaction is spontaneous only at ...
Topic 5 Reacting masses and chemical equations notes
... The chemical formula is made up using the symbol on the periodic table. Make sure you get the correct symbol. For simple molecules the formula shows the actual number of each type of atom present. However for ionic substances and macromolecules, which have giant structures, the formula shows the rat ...
... The chemical formula is made up using the symbol on the periodic table. Make sure you get the correct symbol. For simple molecules the formula shows the actual number of each type of atom present. However for ionic substances and macromolecules, which have giant structures, the formula shows the rat ...
Atomic Nucleus and Isotopes
... will make use of this complexity through a lab activity that will tie in the multiple concepts they learned to collectively solve problems. In collaborative groups, students will be able to discuss their observations, which will help them gain confidence in their results when presenting them to clas ...
... will make use of this complexity through a lab activity that will tie in the multiple concepts they learned to collectively solve problems. In collaborative groups, students will be able to discuss their observations, which will help them gain confidence in their results when presenting them to clas ...
Chapter 5 notes
... Strategy Assume a 100-g sample so that the mass percentages of nitrogen and oxygen given in the problem statement correspond to the masses of N and O in the compound. Then, using the appropriate molar masses, convert the grams of each element to moles. Use the resulting numbers as subscripts in the ...
... Strategy Assume a 100-g sample so that the mass percentages of nitrogen and oxygen given in the problem statement correspond to the masses of N and O in the compound. Then, using the appropriate molar masses, convert the grams of each element to moles. Use the resulting numbers as subscripts in the ...
Electron Configurations and the Properties of Atoms
... generated by electrons with opposite spin (in a single atom, molecule, or ion) directly counteract and cancel each other. Therefore, any atom or molecule with equal numbers of spin up and spin down electrons will have a net magnetic field of zero. Two electrons with opposite spin are said to be spin ...
... generated by electrons with opposite spin (in a single atom, molecule, or ion) directly counteract and cancel each other. Therefore, any atom or molecule with equal numbers of spin up and spin down electrons will have a net magnetic field of zero. Two electrons with opposite spin are said to be spin ...
PHYSICAL SETTING CHEMISTRY
... (1) a greater magnitude and the same sign (2) a greater magnitude and the opposite sign (3) the same magnitude and the same sign (4) the same magnitude and the opposite sign 2 Which atom has the largest atomic radius? (1) potassium (3) francium (2) rubidium (4) cesium ...
... (1) a greater magnitude and the same sign (2) a greater magnitude and the opposite sign (3) the same magnitude and the same sign (4) the same magnitude and the opposite sign 2 Which atom has the largest atomic radius? (1) potassium (3) francium (2) rubidium (4) cesium ...
Chapter 2. Atoms, Molecules, and Ions - College Test bank
... • Thus, isotopes have the same Z but different A. • There can be a variable number of neutrons for the same number of protons. Isotopes have the same number of protons but different numbers of neutrons. • All atoms of a specific element have the same number of protons. • Isotopes of a specific eleme ...
... • Thus, isotopes have the same Z but different A. • There can be a variable number of neutrons for the same number of protons. Isotopes have the same number of protons but different numbers of neutrons. • All atoms of a specific element have the same number of protons. • Isotopes of a specific eleme ...
An Atom: The Smallest Part of Matter What`s It All About?
... All matter is made of very tiny particles. These particles keep the same characteristics or properties that the matter has. These particles are called atoms. All atoms are about the same size, and they are VERY tiny. An atom is more than one million times smaller than the thickness of a single hair ...
... All matter is made of very tiny particles. These particles keep the same characteristics or properties that the matter has. These particles are called atoms. All atoms are about the same size, and they are VERY tiny. An atom is more than one million times smaller than the thickness of a single hair ...
Topic 9 - Anderson High School
... • Negative chloride ions are attracted to the positive ions. There they lose electrons and are oxidized to chlorine gas: 2Cl-(l) → Cl2(g) + 2e• Positive sodium ions are attracted to the negative cathode. They gain electrons and are reduced to sodium metal: ...
... • Negative chloride ions are attracted to the positive ions. There they lose electrons and are oxidized to chlorine gas: 2Cl-(l) → Cl2(g) + 2e• Positive sodium ions are attracted to the negative cathode. They gain electrons and are reduced to sodium metal: ...