Carbonate chips

UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS International General Certificate of Secondary Education *4308315385* CHEMISTRY Paper 2 Candidates answer on the Question Paper. No Additional Materials are required. READ THESE INSTRUCTIONS FIRST Write your Centre number, candidate number and name in the spaces at the top of this page. Write in dark blue or black pen. You may need to use a pencil for any diagrams, graphs or rough working. Do not use staples, paper clips, highlighters, glue or correction

Experiment 1 – Determining the Ideal Gas Constant Introduction: Finding and balancing equations to find the ideal gas constant using PV=nRT. Using Excel to format and graph various types of data, both given and calculated. The data given for the decomposition of NaHCO3 and Na2CO3 provided the information needed to determine the experimental constant “R” that can then be compared to the textbook definition of “R”. Experimental: Data was provided as “Experiment 1: Determining the Ideal Gas

Stromatolites and thrombolites are both organosedimentary structures that have fascinated scientists and the general public for centuries but for as much as they are related or similar they each have unique differences. The word stromatolite means “layered rock”; it’s a microbial structure that is created by a layering of sediment that is cemented by abundant cyanobacteria colonies. A thrombolite was named from the word thrombosis which means “clots or clotting” because they are not layered like

Introduction Laundry detergents are a cleansing agent that is widely used in the industry to clean laundry. The term “detergent” refers to mixtures of chemical compounds including Alkyl Sulphonates, which are similar to soap but less affected by hard water (Farlex, 2014). Like soap, detergent increases the ability of water to penetrate fabric and break down greases and dirt, however they are derived from organic acids rather than fatty acids (Mifflin, 2005). A detergent is an ion or molecule that

cleaning clothes for stain remover Lastly, charismas ornaments and sidewalk chalk are made from eggshell by people. For these reasons, I figured out a chemical formula for the eggshell. Eggshell is made up of 95% calcium carbonate and 5% calcium phosphate with magnesium carbonate. The formula CACO3 is very common in natural such as limestone cave, animal’s bones. Normally, the cement production and agriculture have deployed this component. The formula CACO3 is utilized to enforce the strength of cement

Abstract: Thermal analysis data is used to determine the mechanism of decomposition, reaction energetics, and gas evolution of a material, specifically calcium silicate, also called limestone. Based on the basic rules of thermodynamics, a hypothesis can be formed that, as limestone is heated, it decomposes into calcium oxide and carbon dioxide due to heat transfer and the creation of impurities. The addition of silicon oxide, or quartz, can also cause limestone to decompose in the same manner. This

Forensic Osteology of Child Abuse By: Heather Hogue ANTH328-101 11/26/2016 In my paper, I will explain forensic osteology and how it helps determine child abuse. I will also explain different cultures and situations where child abuse cases take place. I will describe where child abuse has taken place even in ancient times. Lastly, I will explain the challenges of forensic osteology in determining child abuse, what could be mistaken for it, and how it’s properly analyzed. My first article

design. The designs are actually placed on the eggshell which is the exterior, outer covering of a bird’s egg. Even with a protective and vigilant covering for the egg, it can still dissolve. One example is the Bird Eggshells, which contain calcium carbonate and could dissolve into many acids, such as the vinegar used in cooking. When it is dissolving, the particles inside it revert with its own acid to form carbon dioxide. (Britannica, 2012) Insect Eggs The manner in which growth and expansion is

Crucible tongs Single hole stopper Iron ring Safety goggles Rubber tubing Wire gauze Flint lighter Bunsen burner Evaporating dish Hot pad Wooden splint Small test tube Crucible Test tube clamp Electronic balance Materials: 2.0g of Sodium hydrogen carbonate (NaHCO3) Limewater (Ca(OH)2) Cobalt chloride paper (CoCl2) Introduction: Baking soda will be heated in a decomposition reactions and one of the following reactions will occur. Using your quantitative and qualitative results, you will choose the

Household Chemistry - Baking Soda Basic details of the product: Sodium bicarbonate, Sodium hydrogen carbonate or commonly referred to as Baking Soda, is a chemical compound composed of sodium ions and bicarbonate atoms. The chemical formula of baking soda is NaHCO₃. Baking soda has only one ingredient: Sodium bicarbonate. Baking soda has an intramolecular covalent bond between its hydrogen, carbon, and oxygen atoms and an intermolecular ionic bond between the Na+ and the HCO₃ in the form of a