Chemistry

Identify earths lithospheric plates
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PLEASE ANSWER ASAP- 2 MIN LEFTA pH of 7 indicates that a solution is ___________ ; a ph 7 is a(n) ---------- solution.
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What is the wavelength of a light frequency 7.21x10^14Hz
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The Ka of acetic acid (CH3COOH) is 1.8 x10-5.Calculate the pH of a 3.0 M solution of acetic acid.
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Where is groundwater stored?A. in lakes and riversB. in oceansC. in ice caps at the polesD. in cracks and pores beneath Earth's surface
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Which of the following Noble Gases has a mass of 10.0 g?
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What is the volume of solution (in mL) produced when 91.80g of Mg(OH)2 are usedto produce a 0.7M solution? Record your answer to 1 decimal places.
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Which phrase describes a volcano that is not expected to erupt again?quiet volcanoextinct volcanodormant volcanoexplosive volcano
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Why did the United States government set aside land for the first national parks?A.They wanted to settle the west as quickly as possible.B.They worried people would destroy the animals and land.C.They worried Native Americans wouldnt have anywhere to go.D.They wanted to make sure all citizens would get a piece of land.
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What is the concentration of a solution in which 0.99 g of KOH are dissolved in 500 mL?
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Prepare a flow diagram for extraction of 2-chlorobenzoic acid and 1,4-dichlorobenzene.
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40 POINTS!Answer correctly for full 40!
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What is the volume of 9.5 g fluorine gas, F2, at STP?
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I need help. Please give a detailed answer: Hydrogen cyanide (HCN) is a colorless gas. It is poisonous and smells like almonds. Draw a Lewis structure for this compound, explain why you drew the Lewis structure the way that you did, and predict the shape of the molecule.
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Correct name of the compound
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What do you need to do to get larger sugar crystals?
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When you hammer a nail, which types of energy are you using? Select all of the correct answers.potential energyphysical energykinetic energymechanical energy
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what is the shortest half life
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Which statements describe prominences? Check all that apply.Prominences are dark, cool areas on the surface of the Sun.Prominences are composed of cool, dense gas.Prominences can disturb radio communications on Earth.Prominences cycle over an 11-year period.Prominences are loop shaped.Prominences appear in groups.
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A child shivers in a cold rain but does not feel cold, what is the biochemistry behind it
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According to Reference Table Adv-8, which of the following is the strongest Brnsted-Lowry acid?1.HS-2.H2S3.HNO24.HNO3
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A football player runs from the 50 yard line to the 20 in 3.4s seconds, what is his speed?
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Please help I dont understand
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Which statement describes a gas condensing into a liquid? A. The atoms in the molecules get heavier so they move less. B. The molecules break into smaller pieces that take up less space. C. The molecules stick together to make bigger molecules. D. The molecules get closer together and move more slowly.
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