Year 9 Chemical Sciences Program Term 3 Course 2 2017
... recognising that the conservation of mass in a chemical reaction can be demonstrated by simple chemical equations ...
... recognising that the conservation of mass in a chemical reaction can be demonstrated by simple chemical equations ...
File
... one another only in the number of neutrons and therefore in atomic mass – Extra neutrons increase atomic weight – Isotopes of an element are chemically similar • Have same valence electrons ...
... one another only in the number of neutrons and therefore in atomic mass – Extra neutrons increase atomic weight – Isotopes of an element are chemically similar • Have same valence electrons ...
Section 2 Types of Chemical Reactions Chapter 8
... usually determined by single-displacement reactions. • The most-active element is placed at the top in the series. • It can replace each of the elements below it from a compound in a singledisplacement reaction. • Activity series are used to help predict whether certain chemical reactions will occur ...
... usually determined by single-displacement reactions. • The most-active element is placed at the top in the series. • It can replace each of the elements below it from a compound in a singledisplacement reaction. • Activity series are used to help predict whether certain chemical reactions will occur ...
Atomic Mass - HCC Learning Web
... A schematic diagram of the combustion device used to analyze substances for carbon and hydrogen. The sample is burned in the presence of excess oxygen, which converts all its carbon to carbon dioxide and all its hydrogen to water. These products are collected by absorption using appropriate material ...
... A schematic diagram of the combustion device used to analyze substances for carbon and hydrogen. The sample is burned in the presence of excess oxygen, which converts all its carbon to carbon dioxide and all its hydrogen to water. These products are collected by absorption using appropriate material ...
Mechanism and Elementary Reactions
... reaction involving formation of intermediate steps. For more details, you can revisit my other post by clicking here. We also learned about the criteria of valid elementary steps for the overall stoichiometry. Additionally, the assumption that are typically made to simplify the rate expressions for ...
... reaction involving formation of intermediate steps. For more details, you can revisit my other post by clicking here. We also learned about the criteria of valid elementary steps for the overall stoichiometry. Additionally, the assumption that are typically made to simplify the rate expressions for ...
Fall.2008.Week9.Lesson.2 - reich
... • Combustion means burning and fire. What two things does fire require? O2 and something to burn. We normally burn hydrocarbons (Hydro=H, Carbon = C therefore stuff made up of H and C). • The products are always CO2 and H2O. • Methane and Oxygen burn write the equation. • ___CH4+ ___O2 ___ CO2 + _ ...
... • Combustion means burning and fire. What two things does fire require? O2 and something to burn. We normally burn hydrocarbons (Hydro=H, Carbon = C therefore stuff made up of H and C). • The products are always CO2 and H2O. • Methane and Oxygen burn write the equation. • ___CH4+ ___O2 ___ CO2 + _ ...
Carbon Interrupted
... large, and intricate molecules. Some form of carbon is found in all forms of life, and most organisms require some form of carbon for a large part of their food sources. But, where does all of the carbon come from, and where does it go? Let us take a journey and follow a single carbon atom through t ...
... large, and intricate molecules. Some form of carbon is found in all forms of life, and most organisms require some form of carbon for a large part of their food sources. But, where does all of the carbon come from, and where does it go? Let us take a journey and follow a single carbon atom through t ...
Chapter 2 Expanded Notes
... atoms are classified into elements based on certain characteristics, which we call identity, and they retain this identity through chemical reactions. Atoms of one element are different from atoms of another element. However, all atoms of the same element have some identifying mark in common. Also n ...
... atoms are classified into elements based on certain characteristics, which we call identity, and they retain this identity through chemical reactions. Atoms of one element are different from atoms of another element. However, all atoms of the same element have some identifying mark in common. Also n ...
Fall 2008 Blank Exam 1 - Department of Chemistry | Oregon State
... There are six significant figures in this measured quantity. There are five significant figures in this measured quantity. There are four significant figures in this measured quantity. There are three significant figures in this measured quantity. There are two significant figures in this measured q ...
... There are six significant figures in this measured quantity. There are five significant figures in this measured quantity. There are four significant figures in this measured quantity. There are three significant figures in this measured quantity. There are two significant figures in this measured q ...
Chapter_04_Structure_of_the_atom
... • J.J. Thomson measured the effects of both magnetic and electric fields on the cathode ray to determine the charge-to-mass ratio of a charged particle, then compared it to known values. • The mass of the charged particle was much less than a hydrogen atom, then the lightest known atom. • Thomson re ...
... • J.J. Thomson measured the effects of both magnetic and electric fields on the cathode ray to determine the charge-to-mass ratio of a charged particle, then compared it to known values. • The mass of the charged particle was much less than a hydrogen atom, then the lightest known atom. • Thomson re ...
Chemical Mathematics
... The number of grams of reactant cannot be directly related to the number of grams of product. • To get grams of product from grams of reactant: • convert grams of reactant to moles of reactant (use molar mass), • convert moles of one reactant to moles of other reactants and products (use the stoichi ...
... The number of grams of reactant cannot be directly related to the number of grams of product. • To get grams of product from grams of reactant: • convert grams of reactant to moles of reactant (use molar mass), • convert moles of one reactant to moles of other reactants and products (use the stoichi ...
Scientific Principles: Chemical Properties
... • To explain the Periodic Table of the Elements • To identify and explain how chemical symbols, formulas and equations are used in food science • To discuss elements, compounds, mixtures and formulas • To compare elements and compounds • To analyze chemical and physical changes in food • To examine ...
... • To explain the Periodic Table of the Elements • To identify and explain how chemical symbols, formulas and equations are used in food science • To discuss elements, compounds, mixtures and formulas • To compare elements and compounds • To analyze chemical and physical changes in food • To examine ...
Radioactive Decay
... _______________ (α): two protons and two neutrons bound together, emitted during some types of radioactive ...
... _______________ (α): two protons and two neutrons bound together, emitted during some types of radioactive ...
Document
... b. Write the equation for the formation of glutamine (Gln) including the energy. c. Write the equation for the hydrolysis of ATP including the energy. d. Write the overall equation for the combined reactions including the net energy change. ...
... b. Write the equation for the formation of glutamine (Gln) including the energy. c. Write the equation for the hydrolysis of ATP including the energy. d. Write the overall equation for the combined reactions including the net energy change. ...
First Homework Assignment
... Homework problem set 1: Solution Key 1. See figure 14-6. Both of these labeled positions end up as carbon 3 (the phosphoester position) in glyceraldehyde-3-phosphate. After all reactions, this ends up being the 3 position (the methyl group) of pyruvate. (The best analytical approach would be mass sp ...
... Homework problem set 1: Solution Key 1. See figure 14-6. Both of these labeled positions end up as carbon 3 (the phosphoester position) in glyceraldehyde-3-phosphate. After all reactions, this ends up being the 3 position (the methyl group) of pyruvate. (The best analytical approach would be mass sp ...
UNIT 3 - ATOMS 1 HISTORY OF ATOMIC THEORY NOTES I
... When we want to know how many atoms of a substance are in a sample of the substance that we can see, counting the atoms individually is not practical. First of all, atoms are so small that we cannot see them individually with our eyes. Second, we would be counting for a very, very, very long time. H ...
... When we want to know how many atoms of a substance are in a sample of the substance that we can see, counting the atoms individually is not practical. First of all, atoms are so small that we cannot see them individually with our eyes. Second, we would be counting for a very, very, very long time. H ...
Summer - Honors Chemistry
... Compounds are composed of two or more different elements chemically bonded in a very definite ratio (both by number of atoms and by mass of atoms). Each compound has at two or more element symbols with subscripts indicating the number of each type of atom (e.g. C6H12O6). Compounds can be decomposed ...
... Compounds are composed of two or more different elements chemically bonded in a very definite ratio (both by number of atoms and by mass of atoms). Each compound has at two or more element symbols with subscripts indicating the number of each type of atom (e.g. C6H12O6). Compounds can be decomposed ...
Science 10 Chem - Holy Trinity Academy
... Mass is so very small that it doesn’t affect the total mass of the atom o -electrons are located in energy levels and the level number depends on # of electrons o -electrons are lazy (want to stay close to the nucleus/less energy need) o *electrons gain energy (heated) they may jump into next leve ...
... Mass is so very small that it doesn’t affect the total mass of the atom o -electrons are located in energy levels and the level number depends on # of electrons o -electrons are lazy (want to stay close to the nucleus/less energy need) o *electrons gain energy (heated) they may jump into next leve ...
Biosynthesis of Plant Primary metabolites
... Formation of primary metabolites Biogenesis in-vivo synthesis of both primary and secondary metabolites is started with the photosynthesis to produce sugar molecules which are metabolized to glycerates, pyruvates and finally acetyl CoA. This acetyl CoA is used in TCA cycle to generate number of ami ...
... Formation of primary metabolites Biogenesis in-vivo synthesis of both primary and secondary metabolites is started with the photosynthesis to produce sugar molecules which are metabolized to glycerates, pyruvates and finally acetyl CoA. This acetyl CoA is used in TCA cycle to generate number of ami ...
document
... measure the electric current. Using this value, we can calculate the steady-state atom number in the trap as well as the loading time. We found that 5.6 million atoms per second were trapped by the MOT. ...
... measure the electric current. Using this value, we can calculate the steady-state atom number in the trap as well as the loading time. We found that 5.6 million atoms per second were trapped by the MOT. ...
radiometric dating - Tulane University
... wood, and shells. Because of the short half-life of 14C, it is only used to date materials younger than about 70,000 years. ...
... wood, and shells. Because of the short half-life of 14C, it is only used to date materials younger than about 70,000 years. ...
CHEMISTRY 112 LECTURE
... 2. The carbon atoms of the longest continuous chain are numbered consecutively from one end to the other, beginning at the end which gives the lowest number to the site of first difference. The position of each substituent group on the chain is then denoted by the corresponding number. 3. The positi ...
... 2. The carbon atoms of the longest continuous chain are numbered consecutively from one end to the other, beginning at the end which gives the lowest number to the site of first difference. The position of each substituent group on the chain is then denoted by the corresponding number. 3. The positi ...
Isotopic labeling
Isotopic labeling (or isotopic labelling) is a technique used to track the passage of an isotope, or an atom with a variation, through a reaction, metabolic pathway, or cell. The reactant is 'labeled' by replacing specific atoms by their isotope. The reactant is then allowed to undergo the reaction. The position of the isotopes in the products is measured to determine the sequence the isotopic atom followed in the reaction or the cell's metabolic pathway. The nuclides used in isotopic labeling may be stable nuclides or radionuclides. In the latter case, the labeling is called radiolabeling.In isotopic labeling, there are multiple ways to detect the presence of labeling isotopes; through their mass, vibrational mode, or radioactive decay. Mass spectrometry detects the difference in an isotope's mass, while infrared spectroscopy detects the difference in the isotope's vibrational modes. Nuclear magnetic resonance detects atoms with different gyromagnetic ratios. The radioactive decay can be detected through an ionization chamber or autoradiographs of gels.An example of the use of isotopic labeling is the study of phenol (C6H5OH) in water by replacing common hydrogen (protium) with deuterium (deuterium labeling). Upon adding phenol to deuterated water (water containing D2O in addition to the usual H2O), the substitution of deuterium for the hydrogen is observed in phenol's hydroxyl group (resulting in C6H5OD), indicating that phenol readily undergoes hydrogen-exchange reactions with water. Only the hydroxyl group was affected, indicating that the other 5 hydrogen atoms did not participate in these exchange reactions.