• important data that will answer the question. • ways to help ensure the accuracy of the results. Materials: Several paper towels‚ a flat dish‚ bottled water‚ a thermometer‚ a tong‚ a ruler‚ and an scale‚ Procedure: (1) Weigh the sick + water (2) Measure each sample of paper towel to be tested to assure a common size and weight. (3) Measure the temperature of the water. (4) Add the towel sample to the water for a period of time using a consistent method. (5) Remove the sample from
Premium Molecule Water Chemistry
Biology‚ Biological Molecules Revision Notes Distinguish between monomers and polymers: Monomers- Identical small molecules. Polymers- Chainlike molecules formed from the linking together of many similar. Distinguish between monosaccharides‚ disaccharides‚ and polysaccharides: Monosaccharides- Simple sugars; sugar molecules may be enantiomers due due to the spatial arrangement of parts around asymmetric carbons; raw material for synthesis of other organic molecules. Disaccharides- Two
Free Glucose Carbohydrate Polysaccharide
Anatomy & Physiology Name ________________________________ Organic Molecules Review Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. ____ 1. Ions are a. electrically neutral fragments of a molecule that has been split apart. b. polar molecules c. radioactive isotopes that give off alpha‚ beta‚ or gamma d. charged atoms or molecules that have gained or lost electrons. ____ 2. Sodium has eleven protons. How many electrons
Premium Atom DNA Covalent bond
important to understand and examine the water molecule in order to ascertain how it brought about Earth’s thriving ecosystem and how important it is for us today. Water is a strong solvent‚ it’s a very unique molecule that can breaks and reforms constantly. Each water molecule consists acid What is acid rain? Acid rain is the term for pollution caused ... of one oxygen atom and two hydrogen atoms. The oxygen atom also called the "apex of the water molecule" bears a slight electronegative charge while
Premium Water Oxygen Atom
BMN103; JOHN LEWIS ORGANISATIONAL STRUCTURE; What is your organisational structure? The governance system of the Partnership was created by our founder‚ John Spedan Lewis and is set out in the Company’s Constitution. Our structure gives our management the freedom to be entrepreneurial and competitive in the way they run the business for long-term success‚ while giving the company’s owners‚ the Partners‚ the rights and responsibilities of ownership through active involvement in the business.
Premium
Assigment 1: Foundations: Atoms‚ Molecules‚ and Ions 1.1 A 47.3-mL sample of ethyl alcohol (ethanol) has a mass of 37.32 g. What is its density? 1.2 If 116 g of ethanol is needed for a chemical reaction‚ what volume of liquid would you use? The density of ethanol is 0.789 g/mL 1.3 Battery acid is 40.0% sulfuric acid‚ H2SO4‚ and 60.0% water by mass. Its density is 1.31. Calculate the mass of pure H2SO4 in 100.0 mL of battery acid. 1.4 How many moles of atoms does 136.9 g of iron metal contain
Premium Ethanol Oxygen Chemistry
LAB EXERCISE: Diffusion and Osmosis Laboratory Objectives After completing this lab topic‚ you should be able to: 1. Describe the mechanism of diffusion at the molecular level. 2. List several factors that influence the rate of diffusion. 3. Explain why diffusion is important to cells. 4. Describe a selectively permeable membrane‚ and explain its role in osmosis. 5. Define hypotonic‚ hypertonic‚ and isotonic in terms of relative concentrations of osmotically active substances. 6. Discuss
Premium Protein Enzyme Cell
contains available ketone or aldehyde molecules then they are reducing sugars. Variables: a. Independent: Function groups react w/ reagent b. Dependent: Color change (red‚ orange‚ yellow) Control: Water Materials: - 4 mL of each solution (Water‚ Starch‚ Glucose‚ Maltose‚ Sucrose‚ Onion Juice‚ Potato slice‚ Milk) - 8 test tubes - 8 pipetes - Benedicts regagent - 150 mL of water - Beaker - 1 pair of tongs - Test tube rack
Premium Protein Nutrition Amino acid
actually drop it. *Ctrl – contains the curves to 15 degree angles. Panning options available while drawing with the Bezier Tool 1. Drag 2. Scroll (zoom out then in) 3. N (navigator) 4. Alt + arrows 5. One-shot hand 6. Scroll bar Things you can do with Bezier Tool 1. Trace Bitmap 2. Draw curves 3. Edit Bezier Pen Tool - A variation of Bezier Tool - Used to draw straight lines and curves - Lines and curves are always visible *Shift – new lines are constrained to specific angles *Ctrl
Premium Curve Angle
group repels against each other and they occupy a lot of space. Scientists use VSEPR Theory to determine the molecule’s geometry by counting the number of electron domains that surround the central atom. Electron domain can be described as a lone pair‚ single‚ double and triple bond‚ and also even free radical. Lone pairs tend to occupy a lot of space and lower the angle of a bond‚ which gives molecular geometry. Lewis structure help determine the molecular geometries‚ 3D structure‚ and distribution
Premium VSEPR theory VSEPR theory Molecular geometry