Electricity is the force that holds together the molecules and atoms of all substances. The type of electricity that is most familiar to us is electrical current. This is the flow of electrical charges through a substance called a conductor such as a metal wire. This flow happens beacuse some of the negatively charge electrons circling the nuclei of the conductor’s are held loosely. The electrons can move from one atom to the next‚ producing and electrical current. Electricity has become something we rely
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added to it and the mixture is heated over a flame. What do you think would happen to the coffee beans as it interacts with the water? Explain your prediction I think the heating of the water and coffee beans would cause the water to turn a light brown color because this process is most likely removing some kind of excess substance from the surface of the coffee beans. This happens because of the rising temperature o the mixture being heated over a flame. 2. What would happen to the water if instead
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Review There are two types of Modifier problems: Misplaced and Dangling modifiers. Know what the modifier refers to. Make sure there is a word or word group in the sentence for the modifier to apply to. Place the modifier in the sentence as close as possible to the word or word group it refers to. (Target) Review There are two types of Modifier problems: Misplaced and Dangling modifiers. Know what the modifier refers to. Make sure there is a word or word group in the sentence for the
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Chemistry Salt Analysis Cheatsheet Version 2.0 © 2008 Ankur Banerjee All Rights Reserved. Only important stuff for CBSE Class 12th Chemistry practical syllabus has been included‚ not everything. 2. WE + acidified K2Cr2O7 2 = sol 3 turns green 3. WE + acidified KMnO4 = pink colour of KMnO4 is discharged 4. Sulphide: Colourless gas with a smell of rotten eggs (H2S); turns lead acetate paper black 1. Sodium nitroprusside test: WE + sodium nitroprusside 4 = purple / violet colour 2. Lead acetate
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Janelle C. Gajardo IV-1 Mrs.Dimacutac December 5‚ 2011 Elements in the Periodic Table Trivia l Actinium (Ac) - radioactive element found in uranium ores‚ used in equilibrium with its decay products as a source of alpha rays.The name originates from the Greek word ’aktinos’ meaning ray or beam. l Argon (Ar) - they don’t often interact with other elements. This caused early mappers of the periodic table‚ such as Dmitri Mendeleev‚ to think of them as proud and noble. l Carbon (C) - can
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pea-size sample of a substance is taken. If the sample melts between 100° and 300° C‚ it will take more than gentle warming‚ but will melt before the test tube turns the flame of Bunsen burner to yellow-orange color. Above 300° C‚ there will be increasing color; up to about 500° C one can still use a test tube and a strong burner flame; however in this experiment there will not be measured any m.p. which are above 500oC. Sample is heated‚ with a loosely closed stopper. During the heating process‚ sample
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THE MAESTRO SUMMARIE!!!!....couldn’t find the other one but I found this * 14-year-old Burl Crow has a father who is violent. His mother struggles with mental illness. When he follows his father to his secret fishing spot he learns that his father is having an affair. Burl’s cover is blown and his father beats him. As his father strikes blow after blow‚ a helicopter flies overhead‚ carrying a piano‚ distracting them both. * Burl runs into the woods‚ relying on the skills of survival
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otherwise you can use the standard set up) The limestone cycle: 1. Burn the limestone chip/ limestone powder in a test tube in a Bunsen flame → calcium oxide 2. Put calcium oxide in water → calcium hydroxide solution + left over limestone 3. Filter the leftover limestone 4. Blow bubbles using a straw into the calcium hydroxide solution → limestone Flame colors: (I copied a table from the internet because it isn’t in the book‚ the ones in red I’m pretty sure you have to know‚ and the ones in
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himself unique in the annals of the nineteen-thirties.” Page 332 2. a. Boo Radley b. “The man was walking with the staccato steps of someone carrying a load too heavy for him. He was going around the corner. He was carrying Jem. Jem’s arms was dangling crazily in front of him.” Page 352 3. a. Bob Ewell b. “Now here me‚ Bob Ewell: if I hear one more word outa my girl Helen about not bein’ able to walk down this road I’ll have you in jail before sundown!” page 334 4. a. First person b
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spirit lamp and then weighed. The mass is recorded. 5. The wick of the lamp is lighted up. 6. The water is stirred continuosly until the water temperature is increased by about 30oC. 7. The flame is put off and the highest temperature of water is recorded. 8. The lamp and its content is weighed immediately and its reading is recorded. 9. Steps 1 to 8 are repeated using other alcohols like ethanol‚ propanol
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