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... 1. Color the carbon atoms black, the oxygen atoms red, and leave the hydrogen atoms white. 2. Use scissors to carefully cut out the atoms. o Build the reactants: 3. On a sheet of paper, place the atoms together to make the molecules of the reactants on the left side of the chemical equation for the ...
... 1. Color the carbon atoms black, the oxygen atoms red, and leave the hydrogen atoms white. 2. Use scissors to carefully cut out the atoms. o Build the reactants: 3. On a sheet of paper, place the atoms together to make the molecules of the reactants on the left side of the chemical equation for the ...
Unit 2 - Biochemistry Notes
... Compound – when different elements combine. CO2 and H2O are molecules, but they are also compounds because they are molecules containing more than one element. ...
... Compound – when different elements combine. CO2 and H2O are molecules, but they are also compounds because they are molecules containing more than one element. ...
star test review
... 6) Which statement describes the elements in Period 3? (a) Each successive element has a greater atomic radius. (b) Each successive element has a lower electronegativity. (c) All elements have similar chemical properties. (d) All elements have valence electrons in the same principal energy level. ...
... 6) Which statement describes the elements in Period 3? (a) Each successive element has a greater atomic radius. (b) Each successive element has a lower electronegativity. (c) All elements have similar chemical properties. (d) All elements have valence electrons in the same principal energy level. ...
CHEM 20 FINAL EXAM: STUDY HEADINGS Jan 2012
... FINAL EXAM REVIEW: 2012 January The first part of this review are typical multiple-choice style questions. There is only one correct answer per question: ...
... FINAL EXAM REVIEW: 2012 January The first part of this review are typical multiple-choice style questions. There is only one correct answer per question: ...
chapter 1 - College Test bank - get test bank and solution manual
... 7. This answer can vary between students, but the combustion of gasoline to propel vehicles is an example of a useful chemical reaction. This reaction is a chemical change because the liquid gasoline is converted to heat and gases. Another constructive example is the burning of coal to heat water in ...
... 7. This answer can vary between students, but the combustion of gasoline to propel vehicles is an example of a useful chemical reaction. This reaction is a chemical change because the liquid gasoline is converted to heat and gases. Another constructive example is the burning of coal to heat water in ...
File
... 4. The formula for sulfurous acid is. a. SF2 b. H2SO4 c. HSO3 d. HSF 5. Which of the following bonds is most negatively charged? a. C-H b. C-S c.C-N d. C-O 6. Based on symmetry which one of these molecules is non-polar? a. H3O+ b. PCl5 c. H2O d. NH3 7. The molecular shape of PH3 would be. a. Trigona ...
... 4. The formula for sulfurous acid is. a. SF2 b. H2SO4 c. HSO3 d. HSF 5. Which of the following bonds is most negatively charged? a. C-H b. C-S c.C-N d. C-O 6. Based on symmetry which one of these molecules is non-polar? a. H3O+ b. PCl5 c. H2O d. NH3 7. The molecular shape of PH3 would be. a. Trigona ...
Chemical Equations
... Combination of two or more substances to form one compound Ex: “Chlorine gas is passed over a piece of sodium metal, producing solid sodium chloride.” ...
... Combination of two or more substances to form one compound Ex: “Chlorine gas is passed over a piece of sodium metal, producing solid sodium chloride.” ...
File
... 4. Which best describes the relationship between subatomic particles in any neutral atom? A. The number of protons equals the number of electrons. B. The number of protons equals the number of neutrons. C. The number of neutrons equals the number of electrons. D. The number of neutrons is greater th ...
... 4. Which best describes the relationship between subatomic particles in any neutral atom? A. The number of protons equals the number of electrons. B. The number of protons equals the number of neutrons. C. The number of neutrons equals the number of electrons. D. The number of neutrons is greater th ...
Basic Chemistry – Terminology and Reactions
... Step 1: Start by finding out how many atoms of each type are on each side of the equation. Step 2: Next, look for an element which is in only one chemical on the left and in only one on the right of the equation. Step 3: Balance that element by multiplying the chemical species on the side which does ...
... Step 1: Start by finding out how many atoms of each type are on each side of the equation. Step 2: Next, look for an element which is in only one chemical on the left and in only one on the right of the equation. Step 3: Balance that element by multiplying the chemical species on the side which does ...
AP Chem Stoichiometry Topic#4 Questions WS Name: Date: Per
... (4) Based on the structural formula, calculate the percentage of carbon by mass present in the compound. (5) The diagram represents the collection of elements formed by a decomposition reaction. (a) If the blue spheres represent N atoms and the red ones represent O atoms, what was the empirical form ...
... (4) Based on the structural formula, calculate the percentage of carbon by mass present in the compound. (5) The diagram represents the collection of elements formed by a decomposition reaction. (a) If the blue spheres represent N atoms and the red ones represent O atoms, what was the empirical form ...
Advanced Chemistry Midterm
... 72. Under what conditions can two electrons occupy the same orbital? a. never b. if they have opposite spins c. if they have parallel spins d. if they have different principal quantum numbers 73. The relationship in which the physical and chemical properties of elements show a periodic pattern when ...
... 72. Under what conditions can two electrons occupy the same orbital? a. never b. if they have opposite spins c. if they have parallel spins d. if they have different principal quantum numbers 73. The relationship in which the physical and chemical properties of elements show a periodic pattern when ...
Final Exam Review Day 1
... The Noble gases are stable because they have ___ ______________ ____________. Elements are placed in order of increasing ______________ _______________ and placed in groups according to their ___________________ __________________. Rows = ______________ =___________ __________ _______ Columns =_____ ...
... The Noble gases are stable because they have ___ ______________ ____________. Elements are placed in order of increasing ______________ _______________ and placed in groups according to their ___________________ __________________. Rows = ______________ =___________ __________ _______ Columns =_____ ...
Physical Science CP Seton Hall Preparatory School Mr. Greene
... Development of Atomic Theory; Democritus, Thomson, Rutherford, and Bohr Atomic number (Z) Mass number (A) Atomic Mass Units (AMU) Isotopes Calculation of the number of neutrons/protons contained in an isotope Ions; cations vs. anions Periodic Table: Period Group Properties of metals, nonmetals, and ...
... Development of Atomic Theory; Democritus, Thomson, Rutherford, and Bohr Atomic number (Z) Mass number (A) Atomic Mass Units (AMU) Isotopes Calculation of the number of neutrons/protons contained in an isotope Ions; cations vs. anions Periodic Table: Period Group Properties of metals, nonmetals, and ...
Chemistry I Syllabus 2011-2012
... Weeks 5—10: Chapter 2 Fun with the Periodic Table, Active Chemistry Pages: 96 – 192 Essential Questions: 1. What specific properties of materials allow them to be classified as metals or nonmetals? 2. How is the relative mass of atoms determined? What does that indicate about the way in which they ...
... Weeks 5—10: Chapter 2 Fun with the Periodic Table, Active Chemistry Pages: 96 – 192 Essential Questions: 1. What specific properties of materials allow them to be classified as metals or nonmetals? 2. How is the relative mass of atoms determined? What does that indicate about the way in which they ...
Unit 10: Structure and Bonding
... The properties of isotopes The chemical properties of isotopes are identical, this is because isotopes of the same element have the same number of outer electrons. It is the outer electrons that determine the reactivity. The physical properties such as density, melting and boiling points can differ ...
... The properties of isotopes The chemical properties of isotopes are identical, this is because isotopes of the same element have the same number of outer electrons. It is the outer electrons that determine the reactivity. The physical properties such as density, melting and boiling points can differ ...
Measuring and Calculating
... the apparent charge of an atom in the molecule. Oxidation numbers can often be found from the atom’s location on the periodic table, but for polyatomic molecules/ions the oxidation numbers are found by .. Group 1 is +1, Group 2 is +2, H is +1 (or -1 in hydrides), O is -2 (-1 is peroxides), in binary ...
... the apparent charge of an atom in the molecule. Oxidation numbers can often be found from the atom’s location on the periodic table, but for polyatomic molecules/ions the oxidation numbers are found by .. Group 1 is +1, Group 2 is +2, H is +1 (or -1 in hydrides), O is -2 (-1 is peroxides), in binary ...
Unit 2
... previous knowledge constantly to solve problems. Along the way, we will see some fun demonstrations and perform some intense chemical experiments. The attached summer assignment is a recommended assignment, but will not be collected. I will field questions via email all summer at [email protected] ...
... previous knowledge constantly to solve problems. Along the way, we will see some fun demonstrations and perform some intense chemical experiments. The attached summer assignment is a recommended assignment, but will not be collected. I will field questions via email all summer at [email protected] ...
Unit 2
... After this page is a sheet of elements; you are expected to know the symbols and names of those elements. The packet is important, but more important is that you understand the material on this. As such you will be tested on these assignments in one big test. The test will occur on the first non-sho ...
... After this page is a sheet of elements; you are expected to know the symbols and names of those elements. The packet is important, but more important is that you understand the material on this. As such you will be tested on these assignments in one big test. The test will occur on the first non-sho ...
Answers to Final Exam Review
... c. E1> E2, as CaCl2 is an ionic bond b. E1< E2, as CaCl2 is a covalent bond d. E1< E2, as CaCl2 is an ionic bond 32. Given the pairs of atoms below, predict whether the bond formed between the atoms is either ionic or covalent, and if ionic, write the formula for the predicted compound. a. Na and Fi ...
... c. E1> E2, as CaCl2 is an ionic bond b. E1< E2, as CaCl2 is a covalent bond d. E1< E2, as CaCl2 is an ionic bond 32. Given the pairs of atoms below, predict whether the bond formed between the atoms is either ionic or covalent, and if ionic, write the formula for the predicted compound. a. Na and Fi ...
Resource for Final Exam Prep
... 2) All atoms of a given element are identical; the atoms of different elements are different and have different properties. 3) Atoms of an element are not changed into different types of atoms by chemical reactions; atoms are neither created nor destroyed in chemical reactions. 4) Compounds are form ...
... 2) All atoms of a given element are identical; the atoms of different elements are different and have different properties. 3) Atoms of an element are not changed into different types of atoms by chemical reactions; atoms are neither created nor destroyed in chemical reactions. 4) Compounds are form ...
MULTIPLE CHOICE. Choose the one alternative that best completes
... 11) Ionic bonds are formed when A) atoms share electrons. B) two or more atoms lose electrons at the same time. C) electrons are completely transferred from one atom to another. D) hydrogen forms bonds with negatively charged atoms in the same or different molecule. E) a pair of electrons is shared ...
... 11) Ionic bonds are formed when A) atoms share electrons. B) two or more atoms lose electrons at the same time. C) electrons are completely transferred from one atom to another. D) hydrogen forms bonds with negatively charged atoms in the same or different molecule. E) a pair of electrons is shared ...
atoms. - Unicam
... discovered but he predicted properties of five of these elements and their compounds. How foolish he would have seemed if these predictions had been incorrect but fortunately for him three of these missing elements were discovered by others within 15 years (ie within his lifetime). The first of thes ...
... discovered but he predicted properties of five of these elements and their compounds. How foolish he would have seemed if these predictions had been incorrect but fortunately for him three of these missing elements were discovered by others within 15 years (ie within his lifetime). The first of thes ...