Technology is an improved route to an unimproved target. Technology is associated with innovation. It has definitely changed our lives for the better. Looking back in time‚ we realize that how much our lives have changed due to the fruits of technology.It has provided us with freedom and less consumption of time and resources. One the most effective pieces of technology is the mobile phone‚and nowadays being equivalent to a civilization. Due to technology changes‚ the dependency upon technology has
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values that have trailing zeros only to the left of the decimal point are ambiguous and should be expressed in scientific notation. We must take note that the chemistry textbook (Silberberg 6e) states that placing a decimal point to the right of some trailing zeros (example: 300.) will make the zeros significant. However in General Chemistry‚ we do not follow this rule. If we want to write a whole number with trailing zeros we must use scientific notation to show which zeros are significant. When
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Chemistry plays an important part in studying Biology. It answers some questions that Biology could not explain alone. Questions like: How does an organism convert foods for energy? How do plants use sunlight and water into all the things that cells needed to grow and reproduce? How does the basic unit of life passed through generation to the next? Here are some contributions of Chemistry in Biology: • Within atomic theory‚ chemistry contributes towards biology in the understanding of atoms
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ago today I was going to watching Kurt referee his very first high school basketball game. I was so excited and so proud of him. I had no clue three years ago how much reffing would become a part of our life. Reffing is life in our household. Honestly‚ reffing takes up about 9 months of our life. From November-March is basketball season. May-July are camps where he is away on the weekends. October is when he has all the clinics and scrimmages. Basically he is off April‚ August and September
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Module 4: 10. Strong Bases: NaOH‚ KOH‚ Na2CO3‚ NaHCO3‚ Na3PO4‚ NaHPO4‚ Strong Acids: Fe(NO3)3‚ HCL‚ HNO3‚ Al(NO3)3‚ NiCl2‚ H2SO4 11. Acidic Neutral Basic NaCl KNO3 NaOH HC2H3O2 Na2CO3 NaC2H3O2 NaHCO3 Fe(NO3)3 NaNO3 Na3PO4 HCl MgSO4 KOH HNO3 Na2SO4 NaHPO4 CuSO4 NaNO2 CoCl2 Al(NO3)3 NiCl2 H2SO4 KCl NH4Cl 12. CuSO4 CuCO3.Cu(OH)2(s) + 2 H2SO4(aq) ----> 2 CuSO4(aq) + CO2(g) + 3 H2O(l) Na3PO4 Na3PO4 (aq) + 3H2O (l) --> H3PO4 (aq) + 3NaOH
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Experiment 9 : The effect of substrate concentration on enzyme activity Objective To find out the relationship between the substrate concentration and the rate of reaction by determining the number of bubbles produce Hydrogen peroxide (H2O2) is a by-product of biochemical metabolism. An accumulation of hydrogen peroxide can be deadly‚ so it has to be decomposed. One of the decomposing factors is an enzyme called Catalase. Catalase breaks hydrogen peroxide into water and oxygen. The chemical
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Properties of Different Bonds An ionic compound forms from a nonmetal and metal element. A covalent compound is formed by two non metal elements. A metallic compound is formed by two metal elements. Metallic compounds have generally high melting points‚ are loose and flexible with their electrons‚ conduct electricity well‚ and have low solubility in water. Ionic compounds are generally crystals‚ have a high melting point‚ and usually have high solubility in water and conduct electricity well when
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Question 1 Electromagnetic radiation behaves both as particles (called photons) and as waves. Wavelength () and frequency () are related according to the equation where is the speed of light (). The energy ( in joules) contained in one quantum of electromagnetic radiation is described by the equation where is Planck’s constant (). Note that frequency has units of inverse seconds ()‚ which are more commonly expressed as hertz (). Part A A microwave oven operates at 2.40 . What is the wavelength
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Decomposition Reaction-Electrolysis of Water Introduction: Demonstrate the decomposition of water in simple but very colorful and dramatic fashion on an overhead projector. Concepts: • Decomposition reaction • Oxidation–reduction • Electrolysis • pH Materials: Sodium Chloride/universal indicator solution‚ NaCl‚ 25 mL Overhead projector Pencil lead‚ 0.7 mm Battery lead with alligator clips Petri dish‚ disposable Battery‚ 9-Volt
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Name: _____________________________ Submit Worksheets for Credit Stereochemistry Workshop 1. Assign the marked asymmetric centers with R or S designations. 2. Rank each of the following sets of substituents (highest priority substituent = 1; lowest priority substituent = 4). Place the number in the blank below the substituent. (a) (b) 3. Determine the relationship between each of the following pairs of structures (enantiomers‚ diastereomers‚ constitutional isomers
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