Honors Chemistry
... Eg. FeCrO4 CrO4 is chromate. Fe can be ferrous (if its +2) or ferric (if its +3). CrO 4 has a charge of -2. No subscripts, so Fe must be +2 ferrous chromate or iron (II) chromate c. Covalent: Non-metal + Non-metal The more metallic element (closest to the metal/non-metal line) goes first. The firs ...
... Eg. FeCrO4 CrO4 is chromate. Fe can be ferrous (if its +2) or ferric (if its +3). CrO 4 has a charge of -2. No subscripts, so Fe must be +2 ferrous chromate or iron (II) chromate c. Covalent: Non-metal + Non-metal The more metallic element (closest to the metal/non-metal line) goes first. The firs ...
Chemistry Unit Test Review
... before. What might have accounted for the mass being different after? ...
... before. What might have accounted for the mass being different after? ...
South Pasadena · AP Chemistry
... 8. A student measures the mass of a beaker filled with corn oil. The mass reading averages 215.6 g. The mass of the beaker is 110.4 g. a. What is the mass of the corn oil? b. What is the density of the corn oil if its volume is 114cm3? ...
... 8. A student measures the mass of a beaker filled with corn oil. The mass reading averages 215.6 g. The mass of the beaker is 110.4 g. a. What is the mass of the corn oil? b. What is the density of the corn oil if its volume is 114cm3? ...
Units 3 and 4 Revision
... Q4. Explain why the metal elements in group 1 are (a) called the alkali metals. (b) stored under oil. Q5. What happens to the melting point of the elements in group 7 (the halogens) as you go the group? Answers:- Q3. Lithium. Q4. (a) The elements in group 1 react with water to form an ...
... Q4. Explain why the metal elements in group 1 are (a) called the alkali metals. (b) stored under oil. Q5. What happens to the melting point of the elements in group 7 (the halogens) as you go the group? Answers:- Q3. Lithium. Q4. (a) The elements in group 1 react with water to form an ...
Regents questions
... Arranging the elements by atomic weight leads to an order slightly different from that in a modern periodic table, where the arrangement is by atomic number. Why does this happen? ...
... Arranging the elements by atomic weight leads to an order slightly different from that in a modern periodic table, where the arrangement is by atomic number. Why does this happen? ...
Chapter 5
... valence electrons for main group elements alkali metals, alkali earth metals, halogens, noble gases metals, nonmetals, metalloids (semimetals); general properties and location Effective nuclear charge, Zeff; approximate value for Zeff, calculation and interpretation Zeff and Coulomb’s law Trends in ...
... valence electrons for main group elements alkali metals, alkali earth metals, halogens, noble gases metals, nonmetals, metalloids (semimetals); general properties and location Effective nuclear charge, Zeff; approximate value for Zeff, calculation and interpretation Zeff and Coulomb’s law Trends in ...
Review for second exam:
... valence electrons for main group elements alkali metals, alkali earth metals, halogens, noble gases metals, nonmetals, metalloids (semimetals); general properties and location Effective nuclear charge, Zeff; approximate value for Zeff, calculation and interpretation Zeff and Coulomb’s law Trends in ...
... valence electrons for main group elements alkali metals, alkali earth metals, halogens, noble gases metals, nonmetals, metalloids (semimetals); general properties and location Effective nuclear charge, Zeff; approximate value for Zeff, calculation and interpretation Zeff and Coulomb’s law Trends in ...
Tutorial 1
... 12. A neutral atom of certain element has 20 electrons. (a) Write the ground-state electron configuration of the element, (b) classify the element, and (c) determine whether the atoms of these elements are diamagnetic or paramagnetic. 13. Write the outer electron configurations for the a. alkali met ...
... 12. A neutral atom of certain element has 20 electrons. (a) Write the ground-state electron configuration of the element, (b) classify the element, and (c) determine whether the atoms of these elements are diamagnetic or paramagnetic. 13. Write the outer electron configurations for the a. alkali met ...
Course Syllabus - Honors Chemistry
... f.* Predict the shape and polarity of simple molecules from Lewis dot structures. g.* Electronegativity and ionization energy relate to bond formation. h.* Identify solids and liquids held together by Van der Waals forces or hydrogen bonding and relate these forces to volatility and boiling/ melting ...
... f.* Predict the shape and polarity of simple molecules from Lewis dot structures. g.* Electronegativity and ionization energy relate to bond formation. h.* Identify solids and liquids held together by Van der Waals forces or hydrogen bonding and relate these forces to volatility and boiling/ melting ...
Document
... Which of the following property is an intensive property of a material? (A) energy (B) volume (C) density (D) mass ...
... Which of the following property is an intensive property of a material? (A) energy (B) volume (C) density (D) mass ...
Revision topic 1-3
... Positive ions are smaller than their parent atoms (because of loss of the outer shell). Negative ions are larger than their parent atoms (because of increased electron repulsion by addition of electrons). The ionic radii decrease as a period is crossed from the left to the right (because of increase ...
... Positive ions are smaller than their parent atoms (because of loss of the outer shell). Negative ions are larger than their parent atoms (because of increased electron repulsion by addition of electrons). The ionic radii decrease as a period is crossed from the left to the right (because of increase ...
Remember Question words
... Law of Conservation of Mass = no detectable gain or loss in mass occurs in chemical reactions. However, the state of a substance may change in a chemical reaction. For example, substances in a chemical reaction can change from solid states to gaseous states but the total mass will not change. Or mor ...
... Law of Conservation of Mass = no detectable gain or loss in mass occurs in chemical reactions. However, the state of a substance may change in a chemical reaction. For example, substances in a chemical reaction can change from solid states to gaseous states but the total mass will not change. Or mor ...
Biochemistry I (CHE 418 / 5418)
... Answers to odd numbered problems in textbook are found in the book’s index. ...
... Answers to odd numbered problems in textbook are found in the book’s index. ...
Tutorial 1
... 11. What is representative element? Give names and symbols of for four representative elements. 12. A neutral atom of certain element has 20 electrons. (a) Write the ground-state electron configuration of the element, (b) classify the element, and (c) determine whether the atoms of these elements ar ...
... 11. What is representative element? Give names and symbols of for four representative elements. 12. A neutral atom of certain element has 20 electrons. (a) Write the ground-state electron configuration of the element, (b) classify the element, and (c) determine whether the atoms of these elements ar ...
Practice Test #1
... Pleaseindicate the correct answer for each question. Each question is worth 5 points. There is only one correct answer per question. Questions with more than one answer will receive no credit. No partial credit will be given. Scratchwork doesn't count, right or wrong! No answers given in the blue bo ...
... Pleaseindicate the correct answer for each question. Each question is worth 5 points. There is only one correct answer per question. Questions with more than one answer will receive no credit. No partial credit will be given. Scratchwork doesn't count, right or wrong! No answers given in the blue bo ...
Topic 3&4 Atoms and the per.table
... Q4. Explain why the metal elements in group 1 are (a) called the alkali metals. (b) stored under oil. Q5. What happens to the melting point of the elements in group 7 (the halogens) as you go the group? Answers:- Q3. Lithium. Q4. (a) The elements in group 1 react with water to form an ...
... Q4. Explain why the metal elements in group 1 are (a) called the alkali metals. (b) stored under oil. Q5. What happens to the melting point of the elements in group 7 (the halogens) as you go the group? Answers:- Q3. Lithium. Q4. (a) The elements in group 1 react with water to form an ...
AP Chemistry 2013 Semester 1 Final Exam Review Problems
... Chapter 1: Matter and Measurement Topics: scientific method, units, measurements, significant figures, scientific notation, accuracy and precision, classifying Matter (element, compound, mixture, solution); physical and chemical properties. 1. When 10.0g of marble chips (calcium carbonate) is treate ...
... Chapter 1: Matter and Measurement Topics: scientific method, units, measurements, significant figures, scientific notation, accuracy and precision, classifying Matter (element, compound, mixture, solution); physical and chemical properties. 1. When 10.0g of marble chips (calcium carbonate) is treate ...
Sep 2
... will have the same proportions of elements Two different samples of CO2: Sample 1: 25.6 g O; 9.6 g C Sample 2: 21.6 g O; 8.10 g C ...
... will have the same proportions of elements Two different samples of CO2: Sample 1: 25.6 g O; 9.6 g C Sample 2: 21.6 g O; 8.10 g C ...
Atom (A) or Ion (I)
... 84. If I have 2.5 mol of calcium carbonate in .30 L of solution, what is the molarity? 85. If I have 700.0 mL of a 5.0 M NaOH solution, how many grams of NaOH were used to make the solution? 86. What is meant by chemical equilibrium? 87. What factors affect the rate of a reaction? 88. What does a ca ...
... 84. If I have 2.5 mol of calcium carbonate in .30 L of solution, what is the molarity? 85. If I have 700.0 mL of a 5.0 M NaOH solution, how many grams of NaOH were used to make the solution? 86. What is meant by chemical equilibrium? 87. What factors affect the rate of a reaction? 88. What does a ca ...
CHEMONE Directions: Select the letter of the best
... a. The average kinetic energies of molecules from sample of different “ideal” gases is the same at the same temperature. b. The molecules of an ideal gas are relatively far apart. c. All molecules of an ideal gas have the same kinetic energy at constant temperature. d. Molecules of a gas undergo man ...
... a. The average kinetic energies of molecules from sample of different “ideal” gases is the same at the same temperature. b. The molecules of an ideal gas are relatively far apart. c. All molecules of an ideal gas have the same kinetic energy at constant temperature. d. Molecules of a gas undergo man ...
Atom (A) or Ion
... 19. This substance is an ion. 20. This substance is an isotope of carbon-12 (12C) 21. The Atomic Theory was first stated in the late 1700s. Which of the following is NOT part of this Atomic Theory? A) All elements are composed of tiny indivisible particles called atoms. B) Atoms are made of smaller ...
... 19. This substance is an ion. 20. This substance is an isotope of carbon-12 (12C) 21. The Atomic Theory was first stated in the late 1700s. Which of the following is NOT part of this Atomic Theory? A) All elements are composed of tiny indivisible particles called atoms. B) Atoms are made of smaller ...
Atom (A) or Ion (I)
... 19. This substance is an ion. 20. This substance is an isotope of carbon-12 (12C) 21. The Atomic Theory was first stated in the late 1700s. Which of the following is NOT part of this Atomic Theory? A) All elements are composed of tiny indivisible particles called atoms. B) Atoms are made of smaller ...
... 19. This substance is an ion. 20. This substance is an isotope of carbon-12 (12C) 21. The Atomic Theory was first stated in the late 1700s. Which of the following is NOT part of this Atomic Theory? A) All elements are composed of tiny indivisible particles called atoms. B) Atoms are made of smaller ...
Atom (A) or Ion (I)
... 19. This substance is an ion. 20. This substance is an isotope of carbon-12 (12C) 21. The Atomic Theory was first stated in the late 1700s. Which of the following is NOT part of this Atomic Theory? A) All elements are composed of tiny indivisible particles called atoms. B) Atoms are made of smaller ...
... 19. This substance is an ion. 20. This substance is an isotope of carbon-12 (12C) 21. The Atomic Theory was first stated in the late 1700s. Which of the following is NOT part of this Atomic Theory? A) All elements are composed of tiny indivisible particles called atoms. B) Atoms are made of smaller ...
Solid - burgess
... remain distinct. Examples are colloids and suspensions such as muddy water ii. homogeneous-has a uniform composition throughout. Example is a solution which is made up of a solvent and a solute such as koolaid or salt water E. Ions 1. Ions are atoms which have gained or lost electrons. 2. examples i ...
... remain distinct. Examples are colloids and suspensions such as muddy water ii. homogeneous-has a uniform composition throughout. Example is a solution which is made up of a solvent and a solute such as koolaid or salt water E. Ions 1. Ions are atoms which have gained or lost electrons. 2. examples i ...
Inductively coupled plasma mass spectrometry
Inductively coupled plasma mass spectrometry (ICP-MS) is a type of mass spectrometry which is capable of detecting metals and several non-metals at concentrations as low as one part in 1015 (part per quadrillion, ppq) on non-interfered low-background isotopes. This is achieved by ionizing the sample with inductively coupled plasma and then using a mass spectrometer to separate and quantify those ions.Compared to atomic absorption techniques, ICP-MS has greater speed, precision, and sensitivity. However, compared with other types of mass spectrometry, such as Thermal ionization mass spectrometry (TIMS) and Glow Discharge Mass Spectrometry (GD-MS), ICP-MS introduces a lot of interfering species: argon from the plasma, component gasses of air that leak through the cone orifices, and contamination from glassware and the cones.The variety of applications exceeds that of inductively coupled plasma atomic emission spectroscopy and includes isotopic speciation. Due to possible applications in nuclear technologies, ICP-MS hardware is a subject for special exporting regulations.