Non-renewable energies are effecting our environment for the worse. The search for new energy source such as alternative energy sources are starting to become an important factor in the human society. Solar power energy is one alternative energy source often over looked that our society should begin using. Solar power energy works like this‚ “When sunlight hits a solar panel‚ it makes electrons in the silicon move around. (Electrons are teeny tiny specks—they’re way too small for us to see‚ even
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______. Give an example. 4) A quality/condition of a substance that can be observed/measured without changing the substance is a ________ __________. Give examples. 5) What are the three states of matter? Put the correct state of matter in each box. 6) What is the difference between gas and vapor? 7) What is a physical change? Give an example. 8) A physical blend of two or more substances is called a _______. 9) There are two basic types of mixtures. Name them‚ explain‚ and give examples
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you just never give up no matter how hard it is. Stay true to yourself and don’t follow bad company . Take my stupid advice and obey your elders and always be respectful and honest.Choose your friends wisely my friend.Reach for stars and go for gold. Think positively always and always do your your best no matter how difficult a situation may be. At some point in the various journeys we embark on in our lives‚ we get to a part where we feel like giving up. Sometimes we give up before we even start
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Wavelength‚ frequency‚ and amplitude and energy. As a person in science‚ i should know the order of colours in the visible spectrum and the span of visible wavelengths. Question: if light is a .. Answer: max planck proposed that e.m radiation comes in units of defined energy rather than in any arbitrary quantities. Planck called it quantum The Photoelectric Effect Planck’s theories were used to explain a number of observations that had been troubling scientists. Einstein extended
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Chapter 17—Alcohols and Phenols SHORT ANSWER Drawing Instructions: Draw structures corresponding to each of the given names. 1. Draw: cis-4-tert-butylcyclohexanol ANS: 2. Draw: 3-methyl-2-buten-1-ol ANS: 3. Draw: 2-phenyl-2-propanol ANS: 4. Draw: glycerol ANS: 5. Draw: 2‚ 4‚ 6-trinitrophenol ANS: IUPAC Naming Instructions: Provide proper IUPAC names. 6. Name: ANS: (E)-2-ethylbut-2-en-1-ol 7. Name: HOCH2CH2OH ANS:
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INTRODUCTION: The purpose of this experiment is to measure the formation constant of the tetraamminecopper(II) ion by colorimetry. Anhydrous copper sulfate (CuSO4) is white‚ which means that it does not absorb light in the visible region of the spectrum. The hydrated copper sulfate (CuSO4 - 5H2O) is blue. The structure of the compound can be represented more accurately as Cu(H2O)4 SO4 - H2O where four water molecules are bound to the copper ion and the fifth is a water of crystallization. The
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Never give up All of us have many dreams in our minds‚ but hardly few manage to get them fulfilled in the first attempt. Dreaming is the sweetest thing ever‚ because we always dream about things we love and hope .The best way to reach your dreams and hopes is to work to achieve them and to change them to reality and never giving up in any situation. “Never give up” means keep trying and never stop working for your goals. For many people‚ failure is nothing but the first step towards the success
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potassium? 8. Configuration ending in s1: strontium or lithium? 9. A 1+ or 1- charge: hydrogen or rubidium? 10. Named after the theorizer of relativity: curium or einsteinium? 11. Configuration ends in 3p1: aluminum or sulfur? 12. Gives a yellow-green flame test: potassium or barium? 13. Named after an Eastern Hemisphere continent: americium or europium? 14. Has one valence electron: calcium or potassium? 15. Doesn’t react with sodium: chlorine or xenon? 16. A metal used
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strong base. The strong base created an anion from an ester of malonic acid. The ion reacted with bromobutane which was also in the reaction solution to give the product. The yield product was a butyl derivative of malonic ester that was isolated by adding water to the reaction solution‚ and extracting with ether. The ether was dried and evaporated to give the product. Procedures: 0.039g of tricaprylmethylammonium chloride‚ 0.358g of 1-bromobutane‚ 0.416g ofdiethyl malnote‚ and 0.414g of potassium carbonate
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Topic: Never‚ never give up. Do you agree? In our life‚ we obviously meet with many difficulties. While some of us can successfully overcome their problems‚ there are also people who get failure and cannot continue their work. From my perspective‚ difficulties is an indispensable part in our life‚ and I strongly agree with statement ‘Never‚ never give up’. Initially‚ to never stop working for your goal is an effective way for you to enjoy your life as well as realize true values of it. It
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