chapter 3 quiz
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CNote
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NYS Chemistry Lab Packet
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Name________________________________________ SC_____-_____ Date___________ ACIDS AND ACID ANHYDRIDES Equipment: 3 test tubes, 1 gas collecting bottle, 1 deflagrating spoon, stopper, charcoal Materials: pH papers, phenolphthalein, red litmus paper, blue litmus paper, methyl orange, 20 mL of 3M HCl (hydrochloric acid), 10 mL 3M H2SO4 (sulfuric acid), 10mL HC2H3O2 (CH3COOH) (acetic acid), 4-5 pieces of Zn(s). Aim: What are some important properties of acids? Common household substances containing acids are vinegar (acetic acid) and lemon juice (citric and ascorbic acids). A. Test 3M hydrochloric acid (HCl) with red and blue litmus papers and pH paper as follows: Put 10 mL of water into a test tube. Add a drop of the acid. Use a glass rod to transfer a
i just wat it haha
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idk
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Chapter 6: Roman and Han China
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Penguins
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This is a penguin.
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Add+Subtract Rational Expressions
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Homework ???????????????Grade?8 Name:?___________________________________________ Date:?__________ The?LCM?of?two?rational?algebraic?expressions?is?often?used?to?add?or?subtract?the?two? expressions.?The?method?used?is?to?identify?all?common?factors?in?the?denominator?of? the?expressions,?and?multiply?the?numerators?by?the?uncommon?factors?(exactly?like?you? would?for?non?algebraic?fractions).? Add?or?subtract?the?following?expressions,?by?first?finding?the?LCD. 1. ????a???+????????a?+?x??????+???ax????? ???????????x???a?????x2?+?ax?+?a2??????x3???a3 2. ??1?????+??????5?????+???? ??x? ??????? ?? ???????????x?+?1????4x?+?4????x2???1 ?? 3. ????1?????+?????2x??????+???3x????+????x??????? ??????????3x???3??????(x???1)2???x?+?1?????(x?+?1)2?
chapter 7 notes
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Chapter 7 Networks of Communication and Exchange The Silk Road Origins and Operations An independent kingdom started while Alexander the Great focused on Mesopotamia and Syria. These people called the Parthians eventually became a major force in 247 BCE. A Chinese general named Zhang Jian made a journey crossing deserts and other landmasses and encountered westward flowing rivers. He obtained a special breed of horses and started what became known as the Silk Road. The Sasanid Empire The Rise of the Empire The Sasanid Empire rivaled against Rome in the border of Europe and Asia. They heavilly relied on the silk roads to gain acess to resources their land could not provide. They often traded their silver work for many other things like eggplant, citrus tres, and other crops.
Jamestown and Plymouth One in the Same
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Jamestown and Plymouth One in the Same Jamestown and Plymouth are two of the first successful colonies to settle in the new world. They are very different but very similar colonies. I have compared and contrasted their location, structure, setbacks, and relationships both inside and outside the colony. These four topics all played a role in the start and success of the two colonies.
iq tests
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Mensa iq test solutions: sequences to complete:??our solutions: 1. m, 2.15, 3.8, 4.6, 5.5, 6.4, 7.1, 8.2?? 9)?Our solution: C 10)??Our solution:B Our solution:C ?????Our solution: D ???Our solution: D???Our solution:C ???Our Solution: D ?Our solution: B ?Our solution:A Our solution:A, D ???Our Solution: BC ?Our solution:DA ?Our solution:BD Our solution:D ???Our Solution: C ?Our solution:B ?Our solution:D ????Our Solution: B ?Our solution:D ?Our solution:C Our Solution:C ???Our Solution: C ?Our solution: C ?Our solution:D o A
history
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