Cognitive Properties Ashley Weber Principles of Chemistry 2 Experiment 1 02/02/2015 Abstract: Several experiments were performed to observe the colligative properties. This includes the freezing point depression‚ and osmotic pressure. Two ice baths were made‚ one with pure water‚ the other with salt water. The lowest temperature was then record for each bath and compared. The salt water had a lower freezing point than the pure water by 2 degrees which supports the hypothesis that solutions have
Premium Freezing-point depression Water
Biology - Main Questions And Answers: Complete the table with a tick if the statement in the first column is true‚ for each process. Write a simple equation to show how ATP is synthesised from ADP: ADP + Pi ATP Give two ways in which the properties of ATP make it a suitable source of energy in biological processes: 1. Energy released in small/suitable amounts 2. Soluble 3. Involves a single/simple reaction Humans synthesise more than their body mass of ATP each day.
Premium Anaerobic digestion Male Manure
for developmental research. (4 marks) Organisms | Advantages | Disadvantages | A. thaliana used for plant development research | 1.) Tiny Genome- Therefore it is easy to study the genes and also to manipulate the genes.2.) Short Life Cycle- Experiments conducted on the A.thaliana will have observable results fast as the development of the plant is rapid.3.) Small size-can be cultivated in a tiny space and this is vital because research areas usually have space limitations.4.) Male and female
Premium Gene Biology Organism
petri dish. There was one growth that was a dark grey colour with a mottled appearance‚ another that was a white colour with a mottled appearance‚ and finally one that was a tan colour with a bubbly appearance. Water: There is a small and very stale pond near my house that I took the water sample from. This was by far the most disgusting of the three observations. The growth I observed looked like a very dark Picasso painting. There was a black coloured colony that had a fuzzy appearance‚ there was
Premium Fungus Bacteria Organism
from Fruits How Cross-linking Changes the Properties of a Polymer Integrated Science Sample SBA Task Practical Related Task – C1 Osmosis in Living Tissue Student Handout (Version 1) Purpose To determine the water potential of potato tissue. Background When two solutions with different concentrations are separated by a selectively permeable membrane‚ osmosis takes place. Water will pass from the side with higher water potential to the side with lower water potential. When a plant tissue is immersed
Premium Ultraviolet Chemistry Composting
Properties of Substances- Gr.12 Chemistry Final Lab Report Lab: Properties of Substances M. Nguyen SCH4U April 27‚ 2012 Abstract The purpose of this experiment was to use a variety of tests to identity the type of bonds which are present in each solid. Various substances (paraffin wax‚ sucrose‚ sodium chloride‚ tin‚ and silicon dioxide) were experimented and identified with tests for hardness‚ solubility‚ conductivity‚ and the time for the solid to melt with a candle and Bunsen burner
Premium Covalent bond Ionic bond Electron
remains frozen. When the temperature reaches 0°C (the melting point of water)‚ the ice begins to melt. Because melting is an endothermic process‚ the heat we add at 0°C is used to convert ice to water and the temperature remains constant until all the ice has melted. Once we reach this point‚ any further addition of heat causes the temperature of the liquid water to increase. You observed a phase change process for ice (solid water) being melted‚ heated and then boiled in class. A graph of the temperature
Premium Thermodynamics Water Heat
BIOLOGICAL SCIENCE Rubyna May L. Espiritu Sir Adrian Guinto BSEDSS 1-1N November 15‚ 2012 The Characteristics of Life There are many properties or the signs of life that the living organisms have. In the book of biology of Mrtinez and Nazareno‚ there are nine characteristics of life just said and those are : a. Living things are highly organized and contain many complex chemical substances ; b. Living things are
Free Cellular respiration Adenosine triphosphate Metabolism
Lab #6 Properties of Hydrates Purpose: The purpose of the “Properties of Hydrates” lab is to study hydrates‚ and be able to identify them. This lab also focuses on observing the reversibility of hydration reactions by hydrolysis‚ and also testing substances for efflorescence of deliquescence. Procedure: A. Identification 1. Place 0.5 grams of each compound (Nickel Chloride‚ Potassium Chloride‚ Sodium Tetraborate‚ Sucrose‚ Calcium Carbonate‚ and Barium Chloride) in a small dry test
Premium Management Marketing Strategic management
WP/09/189 What Drives China’s Interbank Market? Nathan Porter and TengTeng Xu © 2009 International Monetary Fund WP/09/189 IMF Working Paper Asia and Pacific Department What Drives China’s Interbank Market? Prepared by Nathan Porter and TengTeng Xu1 Authorized for distribution by Nigel Chalk September 2009 Abstract This Working Paper should not be reported as representing the views of the IMF. The views expressed in this Working Paper are those of the author(s) and do not necessarily
Premium Monetary policy Interest rate Central bank