Elemental Copper from Copper (II) Nitrate Objectives: Students should be able to… recognize evidence(s) of a chemical change convert word equations into formula equations perform a series of chemical reactions in order to recycle the element copper determine the percent recovery of elemental copper Challenge: How good and accurate a chemist are you? Given a solution of Cu(NO3)2‚ what percentage of elemental copper can you recover from the original solution? Materials: 1 M copper (II)
Premium Sodium hydroxide PH Chlorine
Changing place of women Going back to era of the 1800’s leading to the 1920’s onto now. Women were born to a life of just having a domestic role in their lives. Being a housewife was their only job. Cleaning‚ cooking‚ and taking care of their children were their normal way of living. Therefore‚ doing something out of the ordinary at that time was considered unacceptable and immoral. Although women wanted to enhance their role to be able to work or go to school‚ it was not until the 1920’s that they
Premium Gender Gender role Woman
in the Kitchen Safety in the kitchen means using precautionary methods in the kitchen to prevent an accident. Most accident in the kitchen is due to carelessness. Safety Procedures: Basic Rules of Kitchen Safety 1. Wear appropriate‚ clean clothing on the lab days. 2. Never cook in loose clothes and keep long hair tied back. 3. Store knives in a wooden block or in a drawer. 4. Keep potholder nearby and use them. 5. Don’t let temperature-sensitive foods sit out in the kitchen. 6. Separate
Premium Garbage disposal Food safety Food
LET’S START WITH COPPER CHEMISTRY REPORT 2012 INTRODUCTION: The law of conservation of mass means that the atoms of an object cannot be created or destroyed‚ but can be moved around and be changed into different particles. This law says that when a chemical reaction makes two different atoms into a new product‚ the mass will be the same. Knowing this the mass of the copper should be the same at the beginning and at the end of the experiment. In this investigation we will see
Premium Chemistry Temperature Liquid
Copper sulphate experiment Introduction There are a number of different methods of making salts‚ such as the reaction of a metal with an acid. Copper metal‚ however‚ does not react with sulphuric acid and so another method must be used. In this experiment a basic copper compound (copper(II) oxide) will be reacted with sulphuric acid giving copper(II) sulphate as one of the products. Method 1. Wear goggles and keep your face away from the beaker during the reaction 2. Place 20 cmm3 sulphuric
Premium Sulfuric acid Hydrogen Carbon dioxide
of the news of savages causing trouble everywhere Jamie received a copper flute as a gift from overseas Jamie sees a spiral of smoke coming from the hills Jamie finds his pet seal shot Chapter 4 Jamie clamours over rocks to find Robert because he was out with Andrew hunting Jamie sees a snow goose and follows it into the woods Jamie meets a native boy by a creek Jamie gives the boy his copper flute; the boy gives Jamie his copper necklace and a salmon Chapter 5 Jamie returns to town and finds everyone
Premium United States bankruptcy law Bankruptcy in the United States Bankruptcy
Chemistry in the kitchen Teacher’s guidelines Lorena Payà Vayà Llicència C Curs 2007/2008 Index Unit 1. Can we do chemistry in the kitchen? 1.1. Strawberry smoothie. 1.2. Laboratory vs. Kitchen. 1.3. Safety in lab and in the kitchen. 1.4. Cutting onions or a scientific investigation. 3 Unit 2. How do we measure in the kitchen? 2.1. How do we measure the quantity of each ingredient in our cooking? 2.2. An Old Scottish Recipe or how to convert units. 2.3. Does one kilo of sugar
Premium Chemistry Density Mass
Biology Project Title: Kitchen Waste Recycling Group leader: Content P.3 – 4 Introduction P.5 Background P.6 Data P.7 Literature review P.8 – 11 Method P.12 – 13 Result P.14 Discussion P.15 Conclusion P.16-18 Reflection P.19 Reference P.20 Group Member List P.21 The End Introduction Firstly‚ we should define what kitchen waste is. Kitchen waste refers to the organic waste produced by food
Free Recycling Waste Waste management
CH 130 B: General Chemistry I The Lab Report As a scientist you are responsible for conveying the results of an experiment to a supervisor‚ a colleague‚ or the public. Often‚ you will convey this information in the form of a scientific paper describing your work. This paper needs to clearly describe why and how an experiment was done‚ and it must include an interpretation of results‚ including a discussion of their importance and any significant sources of error. You lab report will
Premium Chemistry
: The copper cycle IN TRODUCTION The purpose of the experiment is to recognize that change of state‚ change in colour‚ formation of a precipitate‚ or the evolution of heat are associated with a chemical change; to study reactions of copper. Copper is an element that can be found in nature in a variety of different compounds. The most common natural ore is the sulphide‚ known as chalcocite‚ Cu2S. This mineral is an important source of copper metal because it is about 80% copper by weight
Premium Chemistry Copper Chemical reaction