Sodium was first discovered by Sir Humphrey Davy in 1807. This element is the 11th element found on the periodic table; located in group 1 and period 3. Its chemical symbol is Na and it is classified as a metal. Metals‚ by definition‚ means that they are elements that are luster‚ lose electrons very easily‚ malleable‚ ductile‚ and are great conductors of heat and electricity. Sodium is found in group 1 of the periodic table because the electronegativity of sodium is very low. This allows it to form
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1. Why do flowers have such a pleasant scent? What would be the practical reason? The practical reason for flowers having such a pleasant scent is to attract birds and insects such as bees. By attracting them to the flower‚ the bird or insect will be more likely to spread the pollen of the flower around‚ allowing for reproduction of that flower. 2. What is the reason behind evolutionary adaptation of flowers into bright colors? The reason behind the evolutionary adaptation of flowers
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A. Complete this chart by filling in the information for each civilization as explained in the assignment. What When Who Where Why Phoenicians Known for manufacturing as well as trade; First to make glass from sand; Purple (the color of royalty) became their trademark. 1200 BCE - 800 BCE Semitic speaking sea people also called Canaanites who because of their location became famous for sea trading. Present day Lebanon and Syria. Excellent ship builders and sailors. Created the phonetic alphabet
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Title: Reaction of Iodoethane with Sodium Saccharin- Ambient Nucleophile Dates Performed: February 21 + 28‚ 2013 Date Submitted: March 14‚ 2013 Abstract: The product ratio of N-ethylsaccharin to O-ethylsaccharin that occurred due to alkylation with iodoethane at 80 oC was determined to be 81.5% to 18.5%‚ respectively‚ based on an analysis of the 1H NMR spectrum that was collected. The melting point range of 87.8-94.7 oC also indicated that the mixture was largely composed of N-ethylsaccharin
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Unit 1 Lab Questions: Jeannie Lozowski Hair Detective 1. Describe the crime that you are investigating in this activity. In this activity‚ we had to discover who stole the rock bands hair products. While the band was in rehearsal‚ someone snuck into their dressing room and stole it. The trail of hair gel lead to the room of another girl band. 2. What evidence do you have to identify the culprit of the crime? We have strands of hair of the culprit and other band members. We tested the hair
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Question 1 1 out of 1 points The volume of a regular cylinder is V = πr2h. Using the value 3.1416 for the constant π‚ the volume (cm3) of a cylinder of radius 2.34 cm and height 19.91 expressed to the correct number of significant figures is _________. Selected Answer: d. 342 Correct Answer: d. 342 Response Feedback: Correct Question 2 1 out of 1 points There are ____________ significant figures in the answer to the following computation: (29.2 - 20.0 ) (1.79 x 105)
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CHAPTER 16 TEST QUESTIONS MULTIPLE CHOICE 1. In regard to political structure‚ postclassical India a. rivaled Tang China in respect to size and administrative brilliance. b. developed no single centralized imperial authority. c. copied the Chinese model after being conquered by the Tang. d. was most influenced by Byzantium. e. was more similar to imperial Rome than to Tang China. 2. An invasion in 451 C.E. by the White Huns‚ began the collapse of the Gupta dynasty and a. began
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Stinson‚ Margie Biology 210 Lab Questions: Phylum Annelida You will learn the answers to most of these questions in class and in lab. Great resource: http://www.bumblebee.org/invertebrates/ANNELIDA.htm 1. What does the word annelida mean? 2. Recall‚ some of the nematode worms appeared superficially to have external rings. Describe true segmentation in annelids. How is the true segmentation in annelids differ from having rings around the ectoderm as in nematodes? 3. What two layers
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3.08 Ancient Music Lab Questions The following answers are located in the articles. Read through the articles to answer each question: Which instrument looks like a snake? The Serpent Which instrument is played by winding a crank? The Hurdy-Gurdy Which instrument "is a loud reed-cap instrument with a double reed"? The Rauschpfeife Which instrument has been called the most versatile of Renaissance wind instruments? The Zink Which instrument was an instrument used by priests in Biblical
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Your first lab link can be found at What Makes a Good Parent? A written transcript is also available for this lab. What makes a good parent according to Dr. Tanya Byron? 1. A good parent is one that doesnt worry to much. Parenting comes from the heart. What are some of the common problems that children might have? 2. With little ones is the behavior problems‚ as well as sleep problems‚ and toliting problems or eating. Why is play important in the parent-child relationship? 3. It helps give attention
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