(3 points each) Chemical Name Chemical Formula Common Use 1 Sodium hydroxide NaOH Drain cleaner 2 Sodium bicarbonate NaHCO3 Baking soda 3 Aluminum oxide Al2O3 Sandblasting sand 4 Sodium hypochlorate NaClO Bleach 5 Aluminum sulfate Al(SO4)3 Used in antiperspirant 6 Ammonium bromide NH4Br Used in photography 7 Ammonium chloride NH4Cl Used in photography 8 Ammonium carbonate (NH4)2CO3 Smelling salts 9 CaCO3 Limestone/chalk 10 Sodium chloride NaCl Table salt 11 Calcium chloride CaCl2 De-icer for
Premium Chlorine Carbon dioxide Sodium carbonate
Alkali Metals Introduction Alkali metals refer to six elements belonging to the Group IA of the long form of the Modern Periodic Table‚ viz. Lithium (Li)‚ Sodium (Na)‚ Potassium (K)‚ Rubidium (Rb)‚ Cesium (Cs) and Francium (Fr). Fr is a radioactive element. These elements are called so because they form strongly alkaline oxides and hydroxides. Electronic Configuration of Alkali Metals Each of the alkali metals has one electron in their outermost (valence) shell‚ which is just outside an inert
Premium Lithium Potassium Sodium
Write your name here Surname Other names Centre Number Candidate Number Edexcel IGCSE Chemistry Unit: 4CH0 Science (Double Award) 4SC0 Paper: 1C Wednesday 25 May 2011 – Morning Time: 2 hours Paper Reference 4CH0/1C 4SC0/1C You must have: Ruler Candidates may use a calculator. Total Marks Instructions black ink or • Usein the boxesball-point pen. page with your name‚ Fill at the top of this • centre number and candidate number. all • Answer
Premium Oxygen Sodium hydroxide Ion
course site. DATA AND OBSERVATIONS (25 points total) You need four digital photographs. At least one should show your face (with safety glasses) as you perform the experiment. Include these photographs: 1. Testing the sodium hydroxide with BTB (make sure I can see the sodium hydroxide after the BTB is added) 2. Well plate after completion of data table 1 (make sure I can see the plate and its contents clearly) 3. Well plate after completion of data table 2 (make sure I can see the plate and its
Premium Acid PH Acetic acid
Core Module 1: The Chemical Earth Contextual Outline The Earth includes a clearly identifiable biosphere‚ lithosphere‚ hydrosphere and atmosphere. All of these are mixtures of thousands of substances and the use of this pool of resources requires the separation of useful substances. The processes of separation will be determined by the physical and chemical properties of the substances. In order to use the Earth’s resources effectively and efficiently‚ it is necessary to understand the properties
Free Atom Chemical bond Oxygen
Chemistry 11 Final Examination Review - Answers Part A - True or False. Indicate whether each of the following statements is true or false. Correct the false statements. F 1. The mass of an electron is equal to the mass of a proton. The mass of an electron is less than the mass of a proton. T 2. The mass of a proton is approximately equal to the mass of a neutron. T 3. The atomic number represents the number of protons in a nucleus. T 4. The proton has a mass of approximately
Premium Atom Sulfuric acid Oxygen
All of the ionic compounds were both electrolytes and soluble‚ demonstrating that that part of our conclusion was correct. However‚ two ionic compounds were shown to be acids (Copper(II) Sulfate and Potassium Carbonate). All but one of the molecular compounds were soluble‚ the exception being Paraffin Wax. However‚ we were wrong in our hypothesis that no molecular compounds were electrolytes‚ as the two acids (Sulfuric acid and Hydrochloric acid) were electrolytes
Premium Water Chemistry Acid
1) What is the purpose of ice or cold water? To cool down the gas so that it condenses and turns into a liquid. 2) when the gas collecting tube is upside down‚ give a property of this gas. It is less dense than air. 3) Why is a pencil used in drawing the origin line in chromatography? If pen was used‚ it will dissolve giving colours and so‚ the experiment won’t be accurate. Pencil doesn’t interfere with the results. 4) When using ethanol‚ give a better apparatus arrangement‚ and why? Cover
Premium Sulfuric acid Hydrochloric acid Acid
“An Essay Explaining the Biochemical Processes that Occur During Decomposition in the Soil Using Organisms such as Bacteria‚ Fungi and Algae. It also Involves an Analysis of the Chemical Reactions Facilitated‚ Processes Involved‚ Mineralization and the Role(s) of Organic and Inorganic Compounds.” by Alicea Bigby-Smart ID #: 12480025 Montego Bay Community College Submitted in Partial Fulfillment of the Requirements of the Council of Community
Premium Nitrogen Soil
College‚ SL#710371 INDUSTRIAL CHEMISTRY What is this topic about? To keep it as simple as possible‚ (K.I.S.S.) this topic involves the study of: 1. THE CHEMICAL INDUSTRY 2. CHEMICAL EQUILIBRIUM 3. PRODUCTION OF SULFURIC ACID 4. PRODUCTION OF SODIUM HYDROXIDE 5. SOAP & DETERGENTS 6. THE SOLVAY PROCESS FOR Na2CO3 ...all in the context of the applications of Chemistry in human society. 1. THE CHEMICAL INDUSTRY The “Invisible” Industry Most people are familiar with some aspects of the production
Premium Sulfuric acid Chemical reaction Sulfur