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An electron is accelerated in a cathode ray tube and moves at a velocity of 3.0*10^6 km/hour. Calculate the kinetic energy of the electron. You can find the mass of an electron on the Table of Constan
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In this assignment, you will complete the worksheet below and upload your answers for a grade. You can answer directly on the worksheet or on a separate paper with items properly numbered.
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I need help from question 2 d) to question 10 f)
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What mass of oxygen is required to oxidise 10.0g of ammonia to NO? 4NH3 + 5O2 ️ 4NO +6H2O
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Complete the following questions and Must show work on everything
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Hey can anyone help me with this?
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Calculate the potential (emf) of a working galvanic cell that is based on these two half cells and standard potentials (both written as reduction reactions) in an aqueous basic solution. Cr3+(aq) →
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can you please help me
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Need help with 2a and 2b please!
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Anyone who can help rn. Org Chemistry assignment ?
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Calculate the volume of Koh dispensed Calculate the number of moles of Koh
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2(a) Aluminium chloride exists in the form of dimer at room temperature. (i) Draw the Lewis structure of aluminium chloride when it is heated to 1000 °C. (2 marks) (ii) Mr Andrew plans to replace the
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naturally occurring argon consists of three isotopes, 36Ar, 38Ar, 40Ar, in the ratio of 4.86: 1: 1423 i) calculate percentage abundance of each isotope ii) calculate the relative atomic mass of argon
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Suppose 2.23 g of barium nitrate is dissolved in 250 of a 50.0 m M aqueous solution of sodium chromate. Calculate the final molarity of barium cation in the solution. You can assume the volume of the
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examples of a branched hydrocarbon
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The pH (at 37°C, where KW = 2.4 × 10−14) of a certain metal hydroxide of formula M(OH)3 is 11.10. What is Ksp for the metal hydroxide at 37°C?
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Sodium-24 has a half-life of 14.8 hours. How much of a 819.3 mg sodium-24 sample will remain after 3.7 days?
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Chemistry
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Approximately (3.230x10^0) g of lead(II) acetate, Pb(CH3COO)2, is weighed out and placed in a (2.85x10^2) mL solution of 0.150-mol/L sodium hydroxide. Calculate the mass of precipitate produced in thi
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the questions are in the file
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name the following molecule
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draw a curve similar to that shown in figure for a series of solutions of nh3. plot [oh−] on the vertical axis and the total concentration of nh3 (both ionized and nonionized nh3 molecules) on the hor
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Help please!
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Consider the following concentration cell. M(s) | M+(satd MX) || M+(0.100 M)| M(s) Ecell = 0.417 V At the anode, a metal electrode (M) is placed in a saturated aqueous solution containing ions of
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Can someone please help me with these chemistry questions
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An electrolytic cell containing one half-cell consisting of a nickel electrode in a 1 mol/L nickel (III) chloride solution and the other half-cell consisting of a cadmium electrode in a 1 mol/L cadmiu
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Please help me.I am unsure how to do the question. Thank you in advance!
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All the question from the attached files
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this picture
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How many formula units (aka "molecules") are contained in 0.812 mole of Pb(NO3)2?
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In the human body, C-12 has an abundance of 98%, and C-13 has an abundance of 2%. What would you expect to be true about the average atomic mass?
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A flask contains 0.190 mol of liquid bromine,Br2, determine the number of bromine molecules present in the flask.
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A gas occupies 1.57 L at 1.00 atm. What will be the volume of this gas if the pressure becomes 3.00 atm?
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1. Which substance is a liquid at 25°C? 2. Which substance is a gas at 25°C? 3. Which three substances contain simple molecules?
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explain why 4-nitrobromobenzene 21 predominates in the product mixture over the 2-nitrobromobenzene 22
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C=5/9 (F−32) The equation above shows how temperature F, measured in degrees Fahrenheit, relates to a temperature C, measured in degrees Celsius. Based on the equation, which of the following must b
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Analyze the assigned neurological disorder and prepare a report in a two- to three-page document. Evaluate the causes of stroke. Discuss the differences between transient ischemic attack and cerebrova
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Consider the following reaction: H2O(g) + CO(g) H2(g) + CO2(g) The equilibrium constant Kp for this reaction is 0.55 at 1023 K. (3 marks) (2 marks) (2 marks) (i) In a reaction vessel, water vapour and
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need help pls
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I would like if I can get help with this assignmen.
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How many grams of Nitric Acid (HNO3) will be produced if 414.0 g of NO2 reacts completely with 45.0 g water at STP?
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Thermodynamic.
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What happens when you add a proton to uranium
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If 15.0 g of H2 reacts with excess N2 according to the following equation what would the pressure of NH3 made be if it were trapped in 2.00 L at 35.0oC: N2 (g) + 3H2 (g) --> 2NH3 (g) (
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Put the title of your article, the date of the article ( remember it has to be dated 2021) ,direct link to your article, and the source of the article in the comment section below. Any comments withou
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Help with all questions attached on the document
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If 33.8 moles of hydrogen gas has a final volume of 3.46 L, then what is the initial volume of 5.22 moles of hydrogen gas? Assume constant pressure and temperature. Round your answer to three signif
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Use the information below to fill out the timeline attached. Use your notes and/or research the scientist responsible for the actions below. Insert the action and the scientist name into the boxes for
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Put the title of your article, the date of the article ( remember it has to be dated 2021) ,direct link to your article, and the source of the article
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Put the title of your article, the date of the article ( remember it has to be dated 2021) ,direct link to your article, and the source of the article
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