Haley CHM2045 Final Review
... 2. A 1.0 L mixture of He, Ar, and Ne has a total pressure of 654 mmHg at 298 K. If the partial pressure of He is 378 mmHg and the partial pressure of Ne is 112 mmHg, what is the partial pressure of Ar? 3. Lithium reacts with nitrogen gas in the following reaction, 6Li + N2 —> 2Li3N What mass of lith ...
... 2. A 1.0 L mixture of He, Ar, and Ne has a total pressure of 654 mmHg at 298 K. If the partial pressure of He is 378 mmHg and the partial pressure of Ne is 112 mmHg, what is the partial pressure of Ar? 3. Lithium reacts with nitrogen gas in the following reaction, 6Li + N2 —> 2Li3N What mass of lith ...
Chemistry Final Test 1999-2000 - Nashoba Valley Technical High
... 37) What is the correct name for the compound with the chemical formula SrCO3? A. strontium carboxide B. strontium carbonate C. strontium carbon trioxide D. strontium carbon oxygen 38) When elements from group 2 (2A) react with elements from group 15 (5A), they produce compounds. Which of the follow ...
... 37) What is the correct name for the compound with the chemical formula SrCO3? A. strontium carboxide B. strontium carbonate C. strontium carbon trioxide D. strontium carbon oxygen 38) When elements from group 2 (2A) react with elements from group 15 (5A), they produce compounds. Which of the follow ...
Atomic Structure Notes
... 2. All atoms of a given element are identical, having the same size, mass and chemical properties. 3. The atoms of one element are different from the atoms of all other elements. 4. Atoms of one element can combine with atoms of other elements to form compounds. A given compound always has the same ...
... 2. All atoms of a given element are identical, having the same size, mass and chemical properties. 3. The atoms of one element are different from the atoms of all other elements. 4. Atoms of one element can combine with atoms of other elements to form compounds. A given compound always has the same ...
9.1-10.5 Organic Chemistry
... Remember Lewis Dot Diagrams from Chem 20?? This means carbon can bond extensively and can bond together to form chains effectively = called Polymerism Carbon covalently bonds by sharing 4 pairs of electrons. These bonds may be single, double or triple, all producing stable compounds Compound ...
... Remember Lewis Dot Diagrams from Chem 20?? This means carbon can bond extensively and can bond together to form chains effectively = called Polymerism Carbon covalently bonds by sharing 4 pairs of electrons. These bonds may be single, double or triple, all producing stable compounds Compound ...
s - chem116
... each atom comprises. Use the total mass of each type of atom determined before, then divide by the formula weight. ...
... each atom comprises. Use the total mass of each type of atom determined before, then divide by the formula weight. ...
Test - Regents
... your answer sheet. Then and only then, place an X in ink in each penciled circle. Be sure to mark only one answer with an X in ink for each question. No credit will be given for any question with two or more X’s marked. The sample below indicates how your final choice should be marked with an X in i ...
... your answer sheet. Then and only then, place an X in ink in each penciled circle. Be sure to mark only one answer with an X in ink for each question. No credit will be given for any question with two or more X’s marked. The sample below indicates how your final choice should be marked with an X in i ...
Column A
... A) Subatomic particles a. What are the atomic mass units for protons, neutrons, and electrons? Protons and neutrons = 1 amu; electrons about 0 amu What does the atomic number represent? # of protons b. What does the mass number represent? # of protons + # of neutrons c. What particles are in equal n ...
... A) Subatomic particles a. What are the atomic mass units for protons, neutrons, and electrons? Protons and neutrons = 1 amu; electrons about 0 amu What does the atomic number represent? # of protons b. What does the mass number represent? # of protons + # of neutrons c. What particles are in equal n ...
Ionic and Covalent Compounds: Naming, Formulas, Properties 1
... b) What is the mole ratio of oxygen gas to carbon dioxide gas? ___mol O 2 :___mol CO 2 [10 points] c) If one mole of oxygen gas reacts, how many moles of carbon dioxide gas are produced? [8 points] d) What are the molar masses of isopentane, C 5 H 12 , AND carbon dioxide, CO 2 ? [8 points] e) The vo ...
... b) What is the mole ratio of oxygen gas to carbon dioxide gas? ___mol O 2 :___mol CO 2 [10 points] c) If one mole of oxygen gas reacts, how many moles of carbon dioxide gas are produced? [8 points] d) What are the molar masses of isopentane, C 5 H 12 , AND carbon dioxide, CO 2 ? [8 points] e) The vo ...
Term 1 and 2 Powerpoints
... thought of where all the statistics we hear about come from, and how the claims are substantiated. How do scientists know exactly what percent our ozone layer has deteriorated, and what percent of our atmosphere is made up harmful pollutants? Well when fossil fuels are burned, or maybe even things l ...
... thought of where all the statistics we hear about come from, and how the claims are substantiated. How do scientists know exactly what percent our ozone layer has deteriorated, and what percent of our atmosphere is made up harmful pollutants? Well when fossil fuels are burned, or maybe even things l ...
Atomic Theory
... Dalton’s Atomic Theory • Scientist, John Dalton (1766-1844) developed an atomic theory that proposed that atoms were responsible for the combinations of elements found in compounds ...
... Dalton’s Atomic Theory • Scientist, John Dalton (1766-1844) developed an atomic theory that proposed that atoms were responsible for the combinations of elements found in compounds ...
CHAPTER-7 The p-Block Elements Block
... Boron trifluoride is prepared by heating B2O3 with CaF2 and conc. H2SO4 B2O3 + 3CaF2 + 3H2SO4 → 2BF3 + 3CaSO4 + 3H2O Hydrolysis of boron trihalides. Boron trihalides fumes in moist air and are highly sensitive to moisture. Boron trifluoride undergoes slow and partial hydrolysis with water while ...
... Boron trifluoride is prepared by heating B2O3 with CaF2 and conc. H2SO4 B2O3 + 3CaF2 + 3H2SO4 → 2BF3 + 3CaSO4 + 3H2O Hydrolysis of boron trihalides. Boron trihalides fumes in moist air and are highly sensitive to moisture. Boron trifluoride undergoes slow and partial hydrolysis with water while ...
AP CHEMISTRY - An Incomplete List of Topics
... Example: When Na2CO3(s) is heated, it will decompose to form CO2(g). Solid Na2O will also be formed as the remainder of the original compound. The Na2O(s) will slowly re-absorb CO2(g) from the air and convert back into Na2CO3(s). Other carbonates follow this same pattern, as seen in the reaction of ...
... Example: When Na2CO3(s) is heated, it will decompose to form CO2(g). Solid Na2O will also be formed as the remainder of the original compound. The Na2O(s) will slowly re-absorb CO2(g) from the air and convert back into Na2CO3(s). Other carbonates follow this same pattern, as seen in the reaction of ...
Adv review key
... A) Electrons are transferred between atoms B) Valence electrons- outer shell electrons C) Metals a. Lend valence electrons b. 1 – 4 valence electrons c. Form positive ions ( more protons than electrons) D) Nonmetals a. Borrow valence electrons b. 4 - 8 valence electrons c. Form negative ions (more e ...
... A) Electrons are transferred between atoms B) Valence electrons- outer shell electrons C) Metals a. Lend valence electrons b. 1 – 4 valence electrons c. Form positive ions ( more protons than electrons) D) Nonmetals a. Borrow valence electrons b. 4 - 8 valence electrons c. Form negative ions (more e ...
APS 1st semester exam review 2016
... A) Electrons are transferred between atoms B) Valence electrons- outer shell electrons C) Metals a. Lend valence electrons b. 1 – 4 valence electrons c. Form positive ions ( more protons than electrons) D) Nonmetals a. Borrow valence electrons b. 4 - 8 valence electrons c. Form negative ions (more e ...
... A) Electrons are transferred between atoms B) Valence electrons- outer shell electrons C) Metals a. Lend valence electrons b. 1 – 4 valence electrons c. Form positive ions ( more protons than electrons) D) Nonmetals a. Borrow valence electrons b. 4 - 8 valence electrons c. Form negative ions (more e ...
Midterm Review 4
... 30. Which subatomic particle did Thompson include in his "plumb pudding model"? a. protons b. neutrons c. electrons d. none of the above 31. Which of the following types of reactions results in a single product? a. combination b. decomposition c. single replacement a. double replacement 32. In the r ...
... 30. Which subatomic particle did Thompson include in his "plumb pudding model"? a. protons b. neutrons c. electrons d. none of the above 31. Which of the following types of reactions results in a single product? a. combination b. decomposition c. single replacement a. double replacement 32. In the r ...
File
... Eg: (1) in a sample of sodium chloride, NaCl, for every Na+ ion there is one Cl- ion Eg: (2) in a sample of calclium chloride, CaCl2, for every Ca2+ ion there are 2 Cl- ions ...
... Eg: (1) in a sample of sodium chloride, NaCl, for every Na+ ion there is one Cl- ion Eg: (2) in a sample of calclium chloride, CaCl2, for every Ca2+ ion there are 2 Cl- ions ...
GC97F Pretest A - American Chemical Society
... 47. Which of the following isoelectronic species has the largest radius? (A) K+ ...
... 47. Which of the following isoelectronic species has the largest radius? (A) K+ ...
Document
... Consider 100 g of water: • Upon decomposition 11.1 g of hydrogen and 88.9 g of oxygen are produced. • The mass ratio of O to H in water is 88.9/11.1 = 8. • Therefore, the mass of O is 2 x 8 = 16 times the mass of H. • If H has a mass of 1, then O has a relative mass of 16. We can measure atomic mass ...
... Consider 100 g of water: • Upon decomposition 11.1 g of hydrogen and 88.9 g of oxygen are produced. • The mass ratio of O to H in water is 88.9/11.1 = 8. • Therefore, the mass of O is 2 x 8 = 16 times the mass of H. • If H has a mass of 1, then O has a relative mass of 16. We can measure atomic mass ...
Theoretical Enthalpy
... die by chemical incineration for being so sweet and chewy little Mr. Gummy Bear. Do you have any last words? 3. Calculate the heats of the reaction for the decomposition of potassium chlorate resulting in the exothermic production of O2 used to execute the “gummy.” ...
... die by chemical incineration for being so sweet and chewy little Mr. Gummy Bear. Do you have any last words? 3. Calculate the heats of the reaction for the decomposition of potassium chlorate resulting in the exothermic production of O2 used to execute the “gummy.” ...
Chemistry English
... With the discovery of atoms came the chemical alphabet of element symbols. Dalton chose the circle as the symbol for oxygen and represented all other elements by variations of the circle. These early primitive symbols evolved into the modern system of using one or two letters of the English alphabet ...
... With the discovery of atoms came the chemical alphabet of element symbols. Dalton chose the circle as the symbol for oxygen and represented all other elements by variations of the circle. These early primitive symbols evolved into the modern system of using one or two letters of the English alphabet ...
Review for Final Exam - Short Answer and Problems
... Limestone is composed of calcium carbonate (CaCO3) as well as other compounds. In an analysis, a chemist takes a sample of limestone which has a mass of 413 mg and treats it with oxalic acid (H2C2O4). A chemical reaction occurs between the calcium carbonate and the acid producing calcium oxalate and ...
... Limestone is composed of calcium carbonate (CaCO3) as well as other compounds. In an analysis, a chemist takes a sample of limestone which has a mass of 413 mg and treats it with oxalic acid (H2C2O4). A chemical reaction occurs between the calcium carbonate and the acid producing calcium oxalate and ...