Chemistry Homework Help: Answers & Questions

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I need one paragraph please give a example about the statement:"the benefits of technology are always paired with risks". I need reply to this two paragraphs. 1-Cars are an example of technology t

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Chemistry
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If the IV (moves up the group 2 or down the group 2), then the DV will (increase or decrease), because (explain WHY

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Chemistry
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The following equation shows the formation of water (H2O, 18.02 g/mol) from hydrogen (H2, 2.02 g/mol) and oxygen (O2, 32.00 g/mol): 2H2 + O2 2H2O If 3.5 g H2 react with 18.7 g O2, what is the limit

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Chemistry
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Which action do researchers take to make advances in science?

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Chemistry
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Calculate ΔH⁰298 (in kJ) for the process P(s) + 5/2 Cl2(g) → PCl5(g) from the following information.P(s) + 3/2 Cl2(g) → PCl3(g) ΔH⁰298 = −287 kJ PCl3(g) + Cl2(g) → PCl5(g) ΔH⁰298 = −88 kJ

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Chemistry
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A copper atom with 34 neutronsExpress your answer as an isotope.

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Chemistry
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Please help me with the answers for this Organic Chemistry 2 practice test so that I can compare my own answers to the actual answers.

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Chemistry
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Jen uses 8.6 gallons of gasoline to drive 164.7 miles. Which is the best estimate for the number of miles per gallon of gasoline her vehicle gets?

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Chemistry
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A 100. mL sample of 0.200 M aqueous hydrochloric acid is added to 100. mL of 0.200 M aqueous ammonia in a calorimeter whose heat capacity (excluding any water) is 480. J/K. The following reaction occu

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Chemistry
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Please see attached file.

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Chemistry
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Please see attached files.

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Chemistry
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I made the experiment, pls answer post lab.

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Chemistry
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The title of this experiement is "Intermolecular Attractive Forces and Surface Tension". Please answer the post labs question.

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Chemistry
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The Title of this experiment is " Intermolecular Attractive Forces and Surface Tension". I made the experiment and these are my data ( Please attached files). Please answer the post lab questions.

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Chemistry
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1. The molar mass of NaHCO3 is_____ g/mol 2. The molar mass of carbon dioxide_____ is g/mol. 3. A sample of NaHCO3 weighs 2.80g. The number of moles of NaHCO3 in the sample______ is moles. 4. A 2.

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Chemistry
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Suppose an experiment is designed to test the durability of batteries in different conditions. All of the batteries tested are double-A (AA) Brand X. All sets of batteries are preconditioned in differ

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Chemistry
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Carys calculates the total amount EEE, in dollars, that she earns for working hhh hours using the equation E=10hE=10hE, equals, 10, h.How many dollars does Carys earn per hour? dollarsAt that rate, ho

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Chemistry
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A construction firm is building a skyscraper, and the height of the skyscraper in yards and feet after certain numbers of days is shown in the table below. What is the missing value in the table?

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Chemistry
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Victor pours 100 grams of oil into a beaker filled with 1,000 grams of water. What is the total mass of his mixture?

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Chemistry
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Victor pours 100 grams of oil into a beaker filled with 1,000 grams of water. What is the total mass of his mixture?

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Chemistry
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