BRICJ A Brick is a block‚ or a single unit of a ceramic material used in masonry construction. Typically bricks are stacked together‚ or laid as brickwork using various kinds ofmortar to hold the bricks together and make a permanent structure. Bricks are typically produced in common or standard sizes in bulk quantities. They have been regarded as one of the longest lasting and strongest building materials used throughout history. In the general sense‚ a "brick" is a standard-sized weight-bearing
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Chemical #1 Seashell Calcium Carbonate - CaO3 Density | * 2.71 g/cm3 (calcite) * 2.83 g/cm3 (aragonite) | Exact mass | * 100.0869 g/mol | Molecular Formula | * CaO3 | Melting point | * 825 °C (calcite) * 1339 °C (aragonite) | Boiling point | * Decomposes | Acidity | * 9.0 | Flash point | * Non flammable | Crystal structure | * Trigonal | Other names | * Limestone‚ Marble‚ Chalk‚ Calcite and pearl. | Calcium carbonate is a chemical compound
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Ankur Sindhu Sep 20‚ 2011 CHEM 182-DL1 Prof.: Dr. Nidhal Marashi Lab 1: Colligative Properties & Osmotic Pressure Purpose: The purpose of this laboratory was to gain an understanding of the differences between the freezing points of pure solvent to that of a solvent in a solution with a nonvolatile solute‚ and to compare the two. Secondly‚ osmosis was to be observed to gain a proper understanding of how the principal of dialysis functions. Procedure: 1. Make
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Chapter I Introduction A.) Background of the Study: The Acids‚ bases and salts in the pH range are among the most important chemical compounds used by chemists. For instance‚ hydrochloric‚ phosphoric and citric are acids used to make mineral stain removers‚ toilet bowl cleaners‚ metal cleaners and rust removers. A variety of maintenance chemicals contain these compounds. Alkali maintenance chemicals like degreasers‚ oven cleaners and drain openers contain bases such as Sodium Hydroxide (NaOH)
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Background of the Study Fruits peels of Banana‚ Orange and other fruits are highly rich in potassium‚ ion‚ zinc etc .If these Peel are added in the soil these will become fertilizers. Fertilizers are any organic or inorganic material of natural or synthetic origin that is added to a soil to supply one or more plant nutrients essential to the growth of the plant. Good fertility is fundamental to successful plant growth and the application of fertilizers and manures is an essential graining act
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Egg Osmosis Lab Introduction What is osmosis? Osmosis is a very important part of biology. It is the spontaneous passage of water or other solvents through a semipermeable membrane. A semipermeable membrane is one that blocks the passage of dissolved substances. Osmosis occurs when there is an imbalance of solutes outside of a cell versus inside the cell. A solution that has a higher concentration of solutes than another solution is said to be hypertonic‚ and water molecules tend to diffuse into
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in form of ATP since it is passive transport and move down the concentration gradient. Cells respond to their external environment by shrinking‚ swelling‚ or staying the same based on the movement of water molecule. The eggshell is made of calcium carbonate. When calcium carbonate is in contact with hydrochloric acid‚ a chemical reaction will takes place and carbon dioxide is released. This results in production of gas bubbles on the surface of the egg. Hypothesis The higher the concentration of sodium
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Processing……………………………………………………………………………8 11. Conclusion and Evaluation………………………………………………………………12 Chemistry HL Lab Report Determination of % of CaCO3 in eggshell 1 Candidate Name: Kamalia‚ Ujjwal Candidate Number: 001350-035 Teacher’s Instruction: Carry out an experiment to determine the %of CaCO3 in egg shell. Research Question: What percentage by mass of an egg shell is Calcium Carbonate ? Variables: 1. 2. 3. Principle used: The principle of back titration is used to determine the percentage by mass
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Salt and chalk were rubbed across teeth. The Chinese chewed on twigs to freshen their breath. Nevertheless‚ chemicals like fluoride‚ xylitol‚ calcium carbonate‚ and chlorhexidine are proven to work stronger in the act of protecting teeth. This experiment will look at whether the eggshells (which acts as teeth) are more damaged by the natural solutions or chemical solutions‚ and which one of the solutions will protect the “teeth” more. When comparing natural and chemical
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The Effect of Temperature on the Rate of the Reaction Between Calcium Carbonate and 1.0 M Hydrochloric Acid Josue Montoya IB Chemistry SL Mr. Pham Due Date: 07 March 2013 Dates Experiment Was Conducted: 27‚ 28‚ 29 February 2013 INTRODUCTION Research Question: How does altering the temperature at which calcium carbonate and 1.0 M hydrochloric acid react‚ affect the rate of reaction? Aim: The purpose of the experiment is to demonstrate
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