Chemistry Revision Guide - Mr Cartlidge`s Science Blog
... When the liquids being distilled have similar boiling points, normal distillation can’t separate them completely but simply gives a purer mixture. In this case a fractionating column is used. This provides a large surface area for condensation meaning much purer ‘fractions’ are produced. The most im ...
... When the liquids being distilled have similar boiling points, normal distillation can’t separate them completely but simply gives a purer mixture. In this case a fractionating column is used. This provides a large surface area for condensation meaning much purer ‘fractions’ are produced. The most im ...
Activity series
... You will see a simulation of the chemical experiments that you just carried out. You can choose a strip of metal to place in each of the solutions and see the results. Click on the molecular scale button at the bottom of the screen to view the metal/metal ion interactions at the submicroscopic level ...
... You will see a simulation of the chemical experiments that you just carried out. You can choose a strip of metal to place in each of the solutions and see the results. Click on the molecular scale button at the bottom of the screen to view the metal/metal ion interactions at the submicroscopic level ...
Document
... 1. Explain what is wrong with the statement “My friend burned a piece of paper (a hydrocarbon) that had the final exam on it and it disappeared”. (Be sure to use a chemical equation, identify reactants and product(s) and include energy). ANSWER: The paper (CxHy) was burned with oxygen and the atoms ...
... 1. Explain what is wrong with the statement “My friend burned a piece of paper (a hydrocarbon) that had the final exam on it and it disappeared”. (Be sure to use a chemical equation, identify reactants and product(s) and include energy). ANSWER: The paper (CxHy) was burned with oxygen and the atoms ...
Metals Minitest
... Plants make carbohydrates which are high energy foods containing the elements carbon, hydrogen, and oxygen. They do this by the method of photosynthesis. While they produce glucose (a monosaccharide sugar) during photosynthesis, they store this as starch (a polysaccharide) which is formed by linking ...
... Plants make carbohydrates which are high energy foods containing the elements carbon, hydrogen, and oxygen. They do this by the method of photosynthesis. While they produce glucose (a monosaccharide sugar) during photosynthesis, they store this as starch (a polysaccharide) which is formed by linking ...
National 5 Chemistry Unit 3 Chemistry In Society
... Plants make carbohydrates which are high energy foods containing the elements carbon, hydrogen, and oxygen. They do this by the method of photosynthesis. While they produce glucose (a monosaccharide sugar) during photosynthesis, they store this as starch (a polysaccharide) which is formed by linking ...
... Plants make carbohydrates which are high energy foods containing the elements carbon, hydrogen, and oxygen. They do this by the method of photosynthesis. While they produce glucose (a monosaccharide sugar) during photosynthesis, they store this as starch (a polysaccharide) which is formed by linking ...
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... side of the arrow (and also the number of oxygen atoms on the left side of the arrow), equals the number of hydrogen atoms (and likewise the number of oxygen atoms), on the right side of the arrow. Atoms are the smallest units of matter that retain chemical properties. Atoms are not visible under n ...
... side of the arrow (and also the number of oxygen atoms on the left side of the arrow), equals the number of hydrogen atoms (and likewise the number of oxygen atoms), on the right side of the arrow. Atoms are the smallest units of matter that retain chemical properties. Atoms are not visible under n ...
Chapter 24. Organic Chemistry
... A mixture of atomic orbitals (or hybrids) which describes covalent bondings in molecules From molecular orbital theory two atomic orbitals form two molecular orbitals, one of them is bonding and another is anibonding Bonding molecular orbital An orbital which has lower energy and grater stability th ...
... A mixture of atomic orbitals (or hybrids) which describes covalent bondings in molecules From molecular orbital theory two atomic orbitals form two molecular orbitals, one of them is bonding and another is anibonding Bonding molecular orbital An orbital which has lower energy and grater stability th ...
SPS1: Students will investigate our current understanding of the
... energy, like matter, cannot be created nor destroyed; it can only be changed from one form of energy to another. Energy takes many forms in the world around us. Each form of energy can be converted to and from other forms of ...
... energy, like matter, cannot be created nor destroyed; it can only be changed from one form of energy to another. Energy takes many forms in the world around us. Each form of energy can be converted to and from other forms of ...
Unit 1 Powerpoint
... B2.2A - Explain how carbon can join to other carbon atoms in chains and rings to form large and complex molecules. B2.2C - Describe the composition of the four major categories of organic molecules (carbohydrates, lipids, proteins, and nucleic acids). B2.2D - Explain the general structure and primar ...
... B2.2A - Explain how carbon can join to other carbon atoms in chains and rings to form large and complex molecules. B2.2C - Describe the composition of the four major categories of organic molecules (carbohydrates, lipids, proteins, and nucleic acids). B2.2D - Explain the general structure and primar ...
Chapter 1.1 –Chemistry is a Physical Science Chemistry is one of
... Horizontal rows called periods (7). Elements within a period have different properties from one another. ...
... Horizontal rows called periods (7). Elements within a period have different properties from one another. ...
CH2 Student Revision Guides pdf
... The next instant the dipole will have changed and more induced dipole-induced dipole interactions will occur. The more electrons in the atom or molecule the greater the number of these induced dipole interactions. For neutral and non-polar molecules or atoms these instantaneous dipoles average out o ...
... The next instant the dipole will have changed and more induced dipole-induced dipole interactions will occur. The more electrons in the atom or molecule the greater the number of these induced dipole interactions. For neutral and non-polar molecules or atoms these instantaneous dipoles average out o ...
Practice MSL Multiple Choice 1. Compared to the charge and mass
... the same charge and a smaller mass the same charge and the same mass an opposite charge and a smaller mass an opposite charge and the same mass ...
... the same charge and a smaller mass the same charge and the same mass an opposite charge and a smaller mass an opposite charge and the same mass ...
Periodic table Periodic Trends
... You can think of this displacement reaction as being a competition between the chlorine in the bromine for an extra electron. Remember that the atomic radius increases down a group. The atomic radius of chlorine (100pm) is smaller than that of bromine (117pm) so chlorine has a stronger attraction fo ...
... You can think of this displacement reaction as being a competition between the chlorine in the bromine for an extra electron. Remember that the atomic radius increases down a group. The atomic radius of chlorine (100pm) is smaller than that of bromine (117pm) so chlorine has a stronger attraction fo ...
mark scheme - A-Level Chemistry
... The marking scheme for this part of the question includes an overall assessment for the Quality of Written Communication (QWC). There are no discrete marks for the assessment of QWC but the candidates’ QWC in this answer will be one of the criteria used to assign a level and award the marks for this ...
... The marking scheme for this part of the question includes an overall assessment for the Quality of Written Communication (QWC). There are no discrete marks for the assessment of QWC but the candidates’ QWC in this answer will be one of the criteria used to assign a level and award the marks for this ...
APS Science Curriculum Unit Planner
... Our perception of the modern model of the atom has developed over time and allows us to make predictions about how chemicals will act when combined. ...
... Our perception of the modern model of the atom has developed over time and allows us to make predictions about how chemicals will act when combined. ...
Using mass to calculate molecular formula
... (Na+)2 SO42-; K+ NO3- ; Ca2+ (F-)2 ; (NH4+)(ClO4-) ; etc (overall neutral)The ions are held together by electrostatic attraction between the opposite charges.(Ionic Bonding). Since an ionic compound must be neutral overall there must be equal numbers of charges on the positive ions (cations) as ther ...
... (Na+)2 SO42-; K+ NO3- ; Ca2+ (F-)2 ; (NH4+)(ClO4-) ; etc (overall neutral)The ions are held together by electrostatic attraction between the opposite charges.(Ionic Bonding). Since an ionic compound must be neutral overall there must be equal numbers of charges on the positive ions (cations) as ther ...
The Atom
... When atoms emit alpha, beta or gamma radiation, it is undergoing a radioactive decay. Decay occurs due to instability within the nucleus. As the ratio of protons to neutrons becomes more skewed, the nucleus becomes more ...
... When atoms emit alpha, beta or gamma radiation, it is undergoing a radioactive decay. Decay occurs due to instability within the nucleus. As the ratio of protons to neutrons becomes more skewed, the nucleus becomes more ...
Name__________________________________________ Answers to Sample Exam Questions #1 Chemistry 112
... 1. Which of the following statements best describes what happens when chocolate melts? a) This is a physical change, and the molecules move farther apart. b) This is a chemical change, and the molecules move farther apart. c) This is a physical change, and the molecules move closer together. d) This ...
... 1. Which of the following statements best describes what happens when chocolate melts? a) This is a physical change, and the molecules move farther apart. b) This is a chemical change, and the molecules move farther apart. c) This is a physical change, and the molecules move closer together. d) This ...
Identify the following properties as either - Teach-n-Learn-Chem
... 1. Explain what is wrong with the statement “My friend burned a piece of paper (a hydrocarbon) that had the final exam on it and it disappeared”. (Be sure to use a chemical equation, identify reactants and product(s) and include energy). ANSWER: The paper (CxHy) was burned with oxygen and the atoms ...
... 1. Explain what is wrong with the statement “My friend burned a piece of paper (a hydrocarbon) that had the final exam on it and it disappeared”. (Be sure to use a chemical equation, identify reactants and product(s) and include energy). ANSWER: The paper (CxHy) was burned with oxygen and the atoms ...
Chemistry Unit Summaries - Oak Park Unified School District
... as we carry measurements through calculations. The given units absorbed by matter. are multiplied by a series of conversion factors, which are ratios Equations for radiant energy, Ephoton = hf and speed of light, of equivalent quantities. After canceling out units algebraically, c = f are combined ...
... as we carry measurements through calculations. The given units absorbed by matter. are multiplied by a series of conversion factors, which are ratios Equations for radiant energy, Ephoton = hf and speed of light, of equivalent quantities. After canceling out units algebraically, c = f are combined ...
Document
... 2. Add prefixes to indicate # of atoms. Omit mono- prefix on the FIRST element. Mono- is OPTIONAL on the ...
... 2. Add prefixes to indicate # of atoms. Omit mono- prefix on the FIRST element. Mono- is OPTIONAL on the ...
2009-10 Chemistry 1st Semester Final Exam Topics and Review
... Elements, atoms, atomic structure- parts, location, charges, and masses. For any atom, ion, or isotope be able to identify: atomic number, mass number (atomic mass), # protons, # electrons, # neutrons 10. Periodic Table: what is found where? What information is in the table? 11. What is meant by the ...
... Elements, atoms, atomic structure- parts, location, charges, and masses. For any atom, ion, or isotope be able to identify: atomic number, mass number (atomic mass), # protons, # electrons, # neutrons 10. Periodic Table: what is found where? What information is in the table? 11. What is meant by the ...
Chapters 1-4 Numbers and Measurements in Chemistry Units SI
... • Because carbon compounds can become quite large, organic compounds are described simply and unambiguously using line structures, where carbons and hydrogens are not explicitly shown. – Each corner or end of a line is a carbon. – Hydrogen y g atoms on carbon atoms are implied. p Carbon makes four b ...
... • Because carbon compounds can become quite large, organic compounds are described simply and unambiguously using line structures, where carbons and hydrogens are not explicitly shown. – Each corner or end of a line is a carbon. – Hydrogen y g atoms on carbon atoms are implied. p Carbon makes four b ...
1st mid unit test formative (pre-test)
... Is a substance that cannot be broken down into any simpler substance by chemical means. Iron, oxygen and neon are examples. ...
... Is a substance that cannot be broken down into any simpler substance by chemical means. Iron, oxygen and neon are examples. ...