Notes for Quarter I
... All waves transfer energy by repeated vibrations. However, waves can differ in many ways. They can be classified based on the direction in which the particles of the medium vibrate compared with the direction in which the waves move. The two main types of waves are transverse waves and longitudinal ...
... All waves transfer energy by repeated vibrations. However, waves can differ in many ways. They can be classified based on the direction in which the particles of the medium vibrate compared with the direction in which the waves move. The two main types of waves are transverse waves and longitudinal ...
Regents Chemistry - New York Science Teacher
... • Element X reacts with iron to form two different compounds with the formulas FeX and Fe2X3. To which group on the Periodic Table does ...
... • Element X reacts with iron to form two different compounds with the formulas FeX and Fe2X3. To which group on the Periodic Table does ...
SUGGESTED TIMELINE: 4 Weeks - Hazlet Township Public Schools
... metric system and what do the values represent? What is dimensional analysis and how is it used to convert between units? How do we make and interpret measurement in chemistry? How is quantitative data expressed with correct precision? Why are numbers put in scientific notation? ...
... metric system and what do the values represent? What is dimensional analysis and how is it used to convert between units? How do we make and interpret measurement in chemistry? How is quantitative data expressed with correct precision? Why are numbers put in scientific notation? ...
Chemical Compounds
... 4. The oxidation state of hydrogen is generally +1 except when it is bonded to metals such as sodium (NaH) in which case it's oxidation number is -1. 5. Fluorine has an oxidation number of -1 in its compounds … always. Group 1 elements have an oxidation number of +1 in their compounds … always. Grou ...
... 4. The oxidation state of hydrogen is generally +1 except when it is bonded to metals such as sodium (NaH) in which case it's oxidation number is -1. 5. Fluorine has an oxidation number of -1 in its compounds … always. Group 1 elements have an oxidation number of +1 in their compounds … always. Grou ...
Chapter 3
... • Ionic bonds—which occur between metals and nonmetals—involve the transfer of electrons from one atom to another. • When a metal interacts with a nonmetal, it can transfer one or more of its electrons to the nonmetal. – The metal atom then becomes a cation. – The nonmetal atom becomes an anion. ...
... • Ionic bonds—which occur between metals and nonmetals—involve the transfer of electrons from one atom to another. • When a metal interacts with a nonmetal, it can transfer one or more of its electrons to the nonmetal. – The metal atom then becomes a cation. – The nonmetal atom becomes an anion. ...
compounds - Belle Vernon Area
... • Ionic bonds—which occur between metals and nonmetals—involve the transfer of electrons from one atom to another. • When a metal interacts with a nonmetal, it can transfer one or more of its electrons to the nonmetal. – The metal atom then becomes a cation. – The nonmetal atom becomes an anion. ...
... • Ionic bonds—which occur between metals and nonmetals—involve the transfer of electrons from one atom to another. • When a metal interacts with a nonmetal, it can transfer one or more of its electrons to the nonmetal. – The metal atom then becomes a cation. – The nonmetal atom becomes an anion. ...
STUDY MATERIAL 2015-16 CHEMISTRY CLASS XI
... Avogadro Law (In 1811, Given by Avogadro) According to this law equal volumes of gases at the same temperature and pressure should contain equal number of molecules. Dalton's Atomic Theory All substances are made up of tiny, indivisible particles called atoms. Atoms of the same element are identical ...
... Avogadro Law (In 1811, Given by Avogadro) According to this law equal volumes of gases at the same temperature and pressure should contain equal number of molecules. Dalton's Atomic Theory All substances are made up of tiny, indivisible particles called atoms. Atoms of the same element are identical ...
Ionic Compounds
... • Ionic bonds—which occur between metals and nonmetals—involve the transfer of electrons from one atom to another. • When a metal interacts with a nonmetal, it can transfer one or more of its electrons to the nonmetal. – The metal atom then becomes a cation. – The nonmetal atom becomes an anion. ...
... • Ionic bonds—which occur between metals and nonmetals—involve the transfer of electrons from one atom to another. • When a metal interacts with a nonmetal, it can transfer one or more of its electrons to the nonmetal. – The metal atom then becomes a cation. – The nonmetal atom becomes an anion. ...
Worksheet Significant Figures
... graphs are used when the data is qualitative (descriptive, based on observations or categories of data). Line graphs are used when the data is quantitative (more precise, measured with tools). **VERY IMPORTANT** When designing an experiment, you should have only one independent and one dependent var ...
... graphs are used when the data is qualitative (descriptive, based on observations or categories of data). Line graphs are used when the data is quantitative (more precise, measured with tools). **VERY IMPORTANT** When designing an experiment, you should have only one independent and one dependent var ...
elements of chemistry unit
... The molecular formula for ammonia is NH3. Even though the rules of oxidation do not tell us the oxidation number for nitrogen, we know the oxidation number for hydrogen is + 1. Since there are three hydrogen atoms in NH3, the hydrogen atoms must have a combined oxidation number of + 3. The nitrogen ...
... The molecular formula for ammonia is NH3. Even though the rules of oxidation do not tell us the oxidation number for nitrogen, we know the oxidation number for hydrogen is + 1. Since there are three hydrogen atoms in NH3, the hydrogen atoms must have a combined oxidation number of + 3. The nitrogen ...
MOLES AND CALCULATIONS USING THE MOLE CONCEPT
... 1. A mole is the amount of any substance that contains as many elementary entities as there are atoms in exactly 1.00 g of hydrogen-1. 2. A mole is the amount ... in exactly 12.00 g of carbon-12. 3. 6.02 x 1023 of anything 4. It is important to state the entities involved: atoms, molecules, ions, el ...
... 1. A mole is the amount of any substance that contains as many elementary entities as there are atoms in exactly 1.00 g of hydrogen-1. 2. A mole is the amount ... in exactly 12.00 g of carbon-12. 3. 6.02 x 1023 of anything 4. It is important to state the entities involved: atoms, molecules, ions, el ...
W1 WORKSHOP ON STOICHIOMETRY
... Q16. Write the ionic equations for the reactions that occur when solid sodium carbonate and solid calcium chloride dissolve in water. Also write the ionic equation for the precipitation of calcium carbonate resulting from mixing the two solutions. Dissolution of sodium carbonate ...
... Q16. Write the ionic equations for the reactions that occur when solid sodium carbonate and solid calcium chloride dissolve in water. Also write the ionic equation for the precipitation of calcium carbonate resulting from mixing the two solutions. Dissolution of sodium carbonate ...
Section 2 Oxidation Numbers
... • In general when assigning oxidation numbers, shared electrons are assumed to “belong” to the more electronegative atom in each bond. • More-specific rules are provided by the following guidelines. ...
... • In general when assigning oxidation numbers, shared electrons are assumed to “belong” to the more electronegative atom in each bond. • More-specific rules are provided by the following guidelines. ...
1 What is the angular momentum quantum number (l) value for the
... Consider the chemical reaction 2KClO3(s) 2KCl(s) ∙ 3O2(g) Which of the following is equal to the mass of KClO3 that is needed to produce 32.0 g of O2? A 40.8 g INCORRECT: The mass of KClO3 needed to produce 32.0 g of O2 is 81.7 g given that the molar mass of O2 is 32.0 g/mol, the molar mass of KC ...
... Consider the chemical reaction 2KClO3(s) 2KCl(s) ∙ 3O2(g) Which of the following is equal to the mass of KClO3 that is needed to produce 32.0 g of O2? A 40.8 g INCORRECT: The mass of KClO3 needed to produce 32.0 g of O2 is 81.7 g given that the molar mass of O2 is 32.0 g/mol, the molar mass of KC ...
Cambridge International Examinations Cambridge
... You may lose marks if you do not show your working or if you do not use appropriate units. A copy of the Periodic Table is printed on page 20. At the end of the examination, fasten all your work securely together. The number of marks is given in brackets [ ] at the end of each question or part quest ...
... You may lose marks if you do not show your working or if you do not use appropriate units. A copy of the Periodic Table is printed on page 20. At the end of the examination, fasten all your work securely together. The number of marks is given in brackets [ ] at the end of each question or part quest ...
Core_Class_Science_Chemistry_for_the_web 838.3 KB
... Qualitative data is obtained through observations that describe color, smell, shape or other physical characteristics that is related to the 5 senses A hypothesis is a tentative explanation for what has been observed. Quantitative data is obtained from numerical observations that describe how much, ...
... Qualitative data is obtained through observations that describe color, smell, shape or other physical characteristics that is related to the 5 senses A hypothesis is a tentative explanation for what has been observed. Quantitative data is obtained from numerical observations that describe how much, ...
Support Material
... Discovery of Electron, Proton and Neutron, atomic number, isotopes and isobars. Thomson’s model and its limitations. Rutherford’s model and its limitations, Bohr’s model and its limitations, concept of shells and subshells, dual nature of matter and light, cle Broglie’s relationship, Heisenberg unce ...
... Discovery of Electron, Proton and Neutron, atomic number, isotopes and isobars. Thomson’s model and its limitations. Rutherford’s model and its limitations, Bohr’s model and its limitations, concept of shells and subshells, dual nature of matter and light, cle Broglie’s relationship, Heisenberg unce ...
Differentiated Chemistry Worksheet and Laboratory
... Appendix A – Laboratory Equipment and LPS Safety Contract ............... A-1 Appendix B – SI Units and Conversions .................................................. A-5 Appendix C – Compound Name and Formula Writing ............................. A-8 Appendix D – Chemical Reactions and Quantities . ...
... Appendix A – Laboratory Equipment and LPS Safety Contract ............... A-1 Appendix B – SI Units and Conversions .................................................. A-5 Appendix C – Compound Name and Formula Writing ............................. A-8 Appendix D – Chemical Reactions and Quantities . ...
CH 151 Companion
... This approach is usually referred to as the Scientific Method. There is nothing unique about the order of activity to this method other than it provides a logical way to deduce order and causality for natural phenomena. An inherent part of the scientific method is the element of creativity. This is ...
... This approach is usually referred to as the Scientific Method. There is nothing unique about the order of activity to this method other than it provides a logical way to deduce order and causality for natural phenomena. An inherent part of the scientific method is the element of creativity. This is ...
Step 2
... electrons are lost and gained. 8NO2 + 8H2O → 8NO3− + 16H+ + 8e− Step 6 Add the half reactions. 8NO2 + 8H2O → 8NO3− + 16H+ + 8e− ClO4− + 8H+ + 8e− → Cl− + 4H2O________ 8NO2 +8H2O +ClO4− +8H+ +8e−→8NO3-+16H++8e−+Cl−+4H2O Step 7 Simplify by removing 8 electrons from both sides. ...
... electrons are lost and gained. 8NO2 + 8H2O → 8NO3− + 16H+ + 8e− Step 6 Add the half reactions. 8NO2 + 8H2O → 8NO3− + 16H+ + 8e− ClO4− + 8H+ + 8e− → Cl− + 4H2O________ 8NO2 +8H2O +ClO4− +8H+ +8e−→8NO3-+16H++8e−+Cl−+4H2O Step 7 Simplify by removing 8 electrons from both sides. ...
chemistry - My Study materials – Kumar
... same proportion of elements by mass. This law is also known as Law of definite proportions. Joseph Louis Proust gave this law hence, this law is also known as Proust’s Law. Explanation of the law:Compounds are formed by the combination of two or more elements. In a compound the ratio of the atoms or ...
... same proportion of elements by mass. This law is also known as Law of definite proportions. Joseph Louis Proust gave this law hence, this law is also known as Proust’s Law. Explanation of the law:Compounds are formed by the combination of two or more elements. In a compound the ratio of the atoms or ...
chemistry
... questions in this examination. Some questions may require the use of the Reference Tables for Physical Setting/Chemistry. You are to answer all questions in all parts of this examination according to the directions provided in the examination booklet. Your answer sheet for Part A and Part B–1 is the ...
... questions in this examination. Some questions may require the use of the Reference Tables for Physical Setting/Chemistry. You are to answer all questions in all parts of this examination according to the directions provided in the examination booklet. Your answer sheet for Part A and Part B–1 is the ...