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... 1. List several differences between ionic and covalent bonds. Ionic bonds occur when ions of opposite charge are mutually attracted. Acids and bases are examples of ionic compounds. Covalent bonds are strong chemical bonds that occur when atoms share electrons. Methane and sugar are examples of cova ...
... 1. List several differences between ionic and covalent bonds. Ionic bonds occur when ions of opposite charge are mutually attracted. Acids and bases are examples of ionic compounds. Covalent bonds are strong chemical bonds that occur when atoms share electrons. Methane and sugar are examples of cova ...
VCAA Study Design - Chemistry Education Association
... • (Earth sciences) Some of Earth’s resources are renewable, but others are nonrenewable • (Earth sciences) Water is an important resource that cycles through the environment Year 8 • (Chemical sciences) The properties of the different states of matter can be explained in terms of the motion and arra ...
... • (Earth sciences) Some of Earth’s resources are renewable, but others are nonrenewable • (Earth sciences) Water is an important resource that cycles through the environment Year 8 • (Chemical sciences) The properties of the different states of matter can be explained in terms of the motion and arra ...
preliminary course outline facilitators course description
... Unavoidably late comers and early leavers, please, minimize the disturbance for your classmates (e.g., take the things that you need before entering the classroom, quietly take/leave the seat without interrupting those around you). No cell phones or headphones in class. Browsing facebook, streaming ...
... Unavoidably late comers and early leavers, please, minimize the disturbance for your classmates (e.g., take the things that you need before entering the classroom, quietly take/leave the seat without interrupting those around you). No cell phones or headphones in class. Browsing facebook, streaming ...
GHW - Louisiana Tech University
... stoichiometric coefficient found in chemical equation and why do they react in simple ratios of moles? Could you measure moles directly measured using a chemical balances which give readings in grams? How is this problem get boiled down to: converting amount of a substance from grams to mole, and la ...
... stoichiometric coefficient found in chemical equation and why do they react in simple ratios of moles? Could you measure moles directly measured using a chemical balances which give readings in grams? How is this problem get boiled down to: converting amount of a substance from grams to mole, and la ...
Chapter 4 The Structure of Matter
... or ions within a substance. • a. Two terms are used to specify the relative positions of atoms to each other in a compound. − (1) Bond length - gives the distance between the two nuclei of the atoms − (2) Bond angles tell how these atoms are oriented when you have three or more atoms in the compound ...
... or ions within a substance. • a. Two terms are used to specify the relative positions of atoms to each other in a compound. − (1) Bond length - gives the distance between the two nuclei of the atoms − (2) Bond angles tell how these atoms are oriented when you have three or more atoms in the compound ...
Chemistry Final Test 1999-2000 - Nashoba Valley Technical High
... 11) A student used a hydrometer to estimate the density of very salty sea water. The hydrometer contains water and used to compare the density of water to the density of the liquid that you put it in. The hydrometer floated in the seawater. What does this tell you about the density of the sea water ...
... 11) A student used a hydrometer to estimate the density of very salty sea water. The hydrometer contains water and used to compare the density of water to the density of the liquid that you put it in. The hydrometer floated in the seawater. What does this tell you about the density of the sea water ...
Chapter 1: Quiz Review - Wetaskiwin Composite High School
... 2. Which human need below was met by Aboriginal people using chemical processes? A. Materials for clothing C. Fertilizers for crops B. Purifying drinking water D. Controlling insect pests 3. A chemical packages contains this WHMIS symbol. Which action below should you be careful to avoid when handli ...
... 2. Which human need below was met by Aboriginal people using chemical processes? A. Materials for clothing C. Fertilizers for crops B. Purifying drinking water D. Controlling insect pests 3. A chemical packages contains this WHMIS symbol. Which action below should you be careful to avoid when handli ...
Atoms and Periodic Table Unit Name
... 25 - These are good conductors of heat and electricity. They also have luster and a high density 27 - Metals are considered this if they can be made into wire. 29 - There are this many known quarks? 30 - The attraction that holds atoms close to each other 32 - Group of nitrogenous organic compounds ...
... 25 - These are good conductors of heat and electricity. They also have luster and a high density 27 - Metals are considered this if they can be made into wire. 29 - There are this many known quarks? 30 - The attraction that holds atoms close to each other 32 - Group of nitrogenous organic compounds ...
Document
... • Because compounds are electrically neutral, one can determine the formula of a compound this way: – The charge on the cation becomes the subscript on the anion. – The charge on the anion becomes the subscript on the cation. – If these subscripts are not in the lowest whole-number ratio, divide the ...
... • Because compounds are electrically neutral, one can determine the formula of a compound this way: – The charge on the cation becomes the subscript on the anion. – The charge on the anion becomes the subscript on the cation. – If these subscripts are not in the lowest whole-number ratio, divide the ...
File
... 6. The effective nuclear charge experienced by the outermost electron of Na is different than the effective nuclear charge experienced by the outermost electron of Ne. This difference best accounts for which of the following? A. Na has a greater density at standard conditions than Ne. B. Na has a lo ...
... 6. The effective nuclear charge experienced by the outermost electron of Na is different than the effective nuclear charge experienced by the outermost electron of Ne. This difference best accounts for which of the following? A. Na has a greater density at standard conditions than Ne. B. Na has a lo ...
200 Things to Know to Pass the Chemistry Regents
... 15. Dalton’s model of the atom was a solid sphere of matter that was uniform throughout. 16. The Bohr Model of the atom placed electrons in “planet-like” orbits around the nucleus of an atom. 17. The current, wave-mechanical model of the atom has electrons in “clouds” (orbitals) around the nucleus. ...
... 15. Dalton’s model of the atom was a solid sphere of matter that was uniform throughout. 16. The Bohr Model of the atom placed electrons in “planet-like” orbits around the nucleus of an atom. 17. The current, wave-mechanical model of the atom has electrons in “clouds” (orbitals) around the nucleus. ...
200things2know
... 15. Dalton’s model of the atom was a solid sphere of matter that was uniform throughout. 16. The Bohr Model of the atom placed electrons in “planet-like” orbits around the nucleus of an atom. 17. The current, wave-mechanical model of the atom has electrons in “clouds” (orbitals) around the nucleus. ...
... 15. Dalton’s model of the atom was a solid sphere of matter that was uniform throughout. 16. The Bohr Model of the atom placed electrons in “planet-like” orbits around the nucleus of an atom. 17. The current, wave-mechanical model of the atom has electrons in “clouds” (orbitals) around the nucleus. ...
BASIC CHEMICAL CONCEPTS
... and atmospheric pressure (solid, liquid, or gas), colour, density, melting point, boiling point, solubility in different solvents, action on other substances, and other properties. ...
... and atmospheric pressure (solid, liquid, or gas), colour, density, melting point, boiling point, solubility in different solvents, action on other substances, and other properties. ...
3. atomic structure
... An orbit describes a particular path that an object follows as it travels around another object For example, the moon has an orbit about the earth Electrons do not follow a particular path around the nucleus Instead, an orbital describes the areas around the nucleus where an electron is most likely ...
... An orbit describes a particular path that an object follows as it travels around another object For example, the moon has an orbit about the earth Electrons do not follow a particular path around the nucleus Instead, an orbital describes the areas around the nucleus where an electron is most likely ...
Chapter 9 Balancing Equations
... atoms as the right side for EACH element. 4. Check your answer to see if: – The numbers of atoms on both sides of the equation are now balanced. – The coefficients are in the lowest possible whole number ratios. (reduced) ...
... atoms as the right side for EACH element. 4. Check your answer to see if: – The numbers of atoms on both sides of the equation are now balanced. – The coefficients are in the lowest possible whole number ratios. (reduced) ...
AP Chemistry Summer Work
... SO WHAT IS THE SUMMER WORK? All work should be done neatly and clearly on paper and organized in the order it was assigned. All work for every problem including units throughout is necessary for AP. This is an expectation on the AP exam in the spring and we want to get into the good habit early ____ ...
... SO WHAT IS THE SUMMER WORK? All work should be done neatly and clearly on paper and organized in the order it was assigned. All work for every problem including units throughout is necessary for AP. This is an expectation on the AP exam in the spring and we want to get into the good habit early ____ ...
History of chemistry
The history of chemistry represents a time span from ancient history to the present. By 1000 BC, civilizations used technologies that would eventually form the basis to the various branches of chemistry. Examples include extracting metals from ores, making pottery and glazes, fermenting beer and wine, extracting chemicals from plants for medicine and perfume, rendering fat into soap, making glass, and making alloys like bronze.The protoscience of chemistry, alchemy, was unsuccessful in explaining the nature of matter and its transformations. However, by performing experiments and recording the results, alchemists set the stage for modern chemistry. The distinction began to emerge when a clear differentiation was made between chemistry and alchemy by Robert Boyle in his work The Sceptical Chymist (1661). While both alchemy and chemistry are concerned with matter and its transformations, chemists are seen as applying scientific method to their work.Chemistry is considered to have become an established science with the work of Antoine Lavoisier, who developed a law of conservation of mass that demanded careful measurement and quantitative observations of chemical phenomena. The history of chemistry is intertwined with the history of thermodynamics, especially through the work of Willard Gibbs.