2 - Castle High School
... a. an atom of iron loses two electrons. b. an atom of zinc loses two electrons. c. an atom of iron loses three electrons. d. an atom of iron gains three electrons. ...
... a. an atom of iron loses two electrons. b. an atom of zinc loses two electrons. c. an atom of iron loses three electrons. d. an atom of iron gains three electrons. ...
AP Chemistry - Chagrin Falls Schools
... Major Projects: 5% each day; after five days, no credit will be given Everyday homework: 50% credit for a day late; after one day, no credit will be given Major Projects: 10% each day; after three days, no credit will be given Everyday homework: 50% for one day late; after the first day late, no cre ...
... Major Projects: 5% each day; after five days, no credit will be given Everyday homework: 50% credit for a day late; after one day, no credit will be given Major Projects: 10% each day; after three days, no credit will be given Everyday homework: 50% for one day late; after the first day late, no cre ...
MATTER QUIZ: What to Study From: PHASE CHANGES
... 4. Temperature at which a liquid becomes a solid. ________________________________ 5. Process by which a solid becomes a liquid. _____________________________________ 6. Icicles growing, candle wax hardening as it cools are examples of: ___________________________________________ 7. Dew forming on g ...
... 4. Temperature at which a liquid becomes a solid. ________________________________ 5. Process by which a solid becomes a liquid. _____________________________________ 6. Icicles growing, candle wax hardening as it cools are examples of: ___________________________________________ 7. Dew forming on g ...
File
... 11. Draw and label an atom (include all the parts with charges) 12. Calculate the average atomic mass for copper if 69% has a mass of 63 amu and 31% has a mass of 65 ...
... 11. Draw and label an atom (include all the parts with charges) 12. Calculate the average atomic mass for copper if 69% has a mass of 63 amu and 31% has a mass of 65 ...
Unit 16 Worksheet - Jensen Chemistry
... 1. When do electrons release photons(packets of energy)? When the electrons: a. move to higher levels of energy b. return to their original energy level c increase orbital speed around the nucleus d. are released by the atom 2. Helium was discovered on the sun in 1868, almost 30 years before it was ...
... 1. When do electrons release photons(packets of energy)? When the electrons: a. move to higher levels of energy b. return to their original energy level c increase orbital speed around the nucleus d. are released by the atom 2. Helium was discovered on the sun in 1868, almost 30 years before it was ...
Atomic Theory Review
... Ionic compound charges 1. Which is a positive ion: A cation or an anion? 2. What is the charge of zinc in Zn3(PO4)2? 3. What is the charge on the iron atom in FePO4? 4. What is the name of FePO4? 5. What is the name of FeP? 6. Which of the following is incorrect? a) Sulfate is SO32- b) nitrate is a ...
... Ionic compound charges 1. Which is a positive ion: A cation or an anion? 2. What is the charge of zinc in Zn3(PO4)2? 3. What is the charge on the iron atom in FePO4? 4. What is the name of FePO4? 5. What is the name of FeP? 6. Which of the following is incorrect? a) Sulfate is SO32- b) nitrate is a ...
Atomic Structure Notes
... Dalton’s Atomic Theory (1808) 1. Elements are composed of extremely small particles called atoms. 2. All atoms of a given element are identical, having the same size, mass and chemical properties. 3. The atoms of one element are different from the atoms of all other elements. 4. Atoms of one elemen ...
... Dalton’s Atomic Theory (1808) 1. Elements are composed of extremely small particles called atoms. 2. All atoms of a given element are identical, having the same size, mass and chemical properties. 3. The atoms of one element are different from the atoms of all other elements. 4. Atoms of one elemen ...
Chemical Reactions Chemistry - is the study of matter, its properties
... How can we check the properties of unknown chemicals to understand or predict the reaction with another chemical? Many chemicals can be hazardous to human health or the environment if they are not handled safely. There are a variety of symbols used to identify hazardous chemicals. Many household pro ...
... How can we check the properties of unknown chemicals to understand or predict the reaction with another chemical? Many chemicals can be hazardous to human health or the environment if they are not handled safely. There are a variety of symbols used to identify hazardous chemicals. Many household pro ...
Revision topic 1-3
... All gases respond in a similar way to changes in temperature, pressure and volume. They exert a pressure, that depends on the amount of gas and the temperature There is no bonding between molecules The molecules may move in all directions allowing the gas to expand throughout any container ...
... All gases respond in a similar way to changes in temperature, pressure and volume. They exert a pressure, that depends on the amount of gas and the temperature There is no bonding between molecules The molecules may move in all directions allowing the gas to expand throughout any container ...
Chemistry Chapter 2 - Barnstable Academy
... b. liquid d. all of the above ____ 18. A substance that forms a vapor is generally in what physical state at room temperature? a. solid c. gas b. liquid d. liquid or solid ____ 19. Which state of matter has a definite volume and takes the shape of its container? a. solid c. gas b. liquid d. both b a ...
... b. liquid d. all of the above ____ 18. A substance that forms a vapor is generally in what physical state at room temperature? a. solid c. gas b. liquid d. liquid or solid ____ 19. Which state of matter has a definite volume and takes the shape of its container? a. solid c. gas b. liquid d. both b a ...
Name: Date: AP Chemistry/Chemistry 145 Summer Assignment
... 18. Silver nitrate and barium chloride solutions are mixed. Write a balanced chemical equation for the reaction of silver nitrate and barium chloride. ...
... 18. Silver nitrate and barium chloride solutions are mixed. Write a balanced chemical equation for the reaction of silver nitrate and barium chloride. ...
Pure substances
... − Each component boils at a different temperature, therefore it is possible to boil off one liquid phase of the mixture at a time. • Distillation is used to purify alcohol, or water, or ...
... − Each component boils at a different temperature, therefore it is possible to boil off one liquid phase of the mixture at a time. • Distillation is used to purify alcohol, or water, or ...
fo-Balancing Chemical Notes
... element is an element that only occurs in one compound in the reactants and in one compound in the products. 3. Change the coefficients of the compounds containing the selected element so that the same number of atoms of this element occur on both the reactant and product sides of the equation. 4. G ...
... element is an element that only occurs in one compound in the reactants and in one compound in the products. 3. Change the coefficients of the compounds containing the selected element so that the same number of atoms of this element occur on both the reactant and product sides of the equation. 4. G ...
Chemistry: Introduction to Chemical Reactions Guided Inquiry What
... Why do methane molecules (natural gas) collide with oxygen molecules in the air harmlessly until there is a spark or flame, and then they cause an explosion? Why do iron atoms react with oxygen molecules in the air to form rust, but gold molecules do not react with air? The Collision theory is the b ...
... Why do methane molecules (natural gas) collide with oxygen molecules in the air harmlessly until there is a spark or flame, and then they cause an explosion? Why do iron atoms react with oxygen molecules in the air to form rust, but gold molecules do not react with air? The Collision theory is the b ...
pdf AP Chemistry Summer Assignment 2014 Dr. Hart`s classes
... Ions, solubility rules, common polyatomic elements, names of acids and common compounds, organic chemistry naming, colors of common ions, compounds and acid-base indicators. Expect quizzes addressing these topics periodically throughout the year until they become second nature. The first quiz, on al ...
... Ions, solubility rules, common polyatomic elements, names of acids and common compounds, organic chemistry naming, colors of common ions, compounds and acid-base indicators. Expect quizzes addressing these topics periodically throughout the year until they become second nature. The first quiz, on al ...
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.