Chemistry

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  Venue: Twickenham Date: 10 November Kick-off: 15:00 GMT Watch Rugby 2018 Live Streaming Free  Coverage: Radio commentary on BBC Radio 5 live (build-up from 14:30) and  live text commentary on BBC Sport website. Highlights on BBC Two at  19:30 GMT. All Blacks coach Steve Hansen says England’s New Zealand-born flanker  Brad Shields will find […]

Chemestry essay | Chemistry homework help

  Choose ONE topic to write 5 pages essay include the cover page and reference page. Your paper should be written according to the APA guidelines. Please see link: https://owl.english.purdue.edu/owl/resource/560/1/. Topics to choose from: The chemistry of diet sodas and the effect on bone structure Acid rain in your neighborhood and the effects on plants […]

Chm/150 week 2 separation of a mixture of solids a+ solution

    CHM/150 Week 2 Separation of a Mixture of Solids   Peter Jeschofnig, Ph.D. Version 42-0196-00-01   Lab Report Assistant                                                                     […]

Written assignment 8: the electronic structure of atoms

  1. The blue color of the sky results from the scattering of sunlight by air molecules. The blue light has a frequency of about 7.5 × 1014 Hz. (a) Calculate the wavelength, in nm, associated with this radiation, and (b) calculate the energy, in joules, of a single photon associated with this frequency. (8 […]

Sulfur dioxide is oxidized to sulfur trioxide

Sulfur dioxide is oxidized to sulfur trioxide in a small pilot-plant reactor. SO2 and 100% excess air are fed to the reactor at 450°C. The reaction proceeds to a 65% SO2 conversion, and the products emerge from the reactor at 550°C. The production rate of SO3 is 1.00 x 102 kg/min. The reactor is surrounded […]

Written assignment 7: energy and thermochemistry

  Written Assignment 7: Energy and ThermochemistryAnswer all assigned questions and problems, and show all work. 1. Consider this reaction:  2CH3OH(l) + 3O2(g) → 4H2O(l) + 2CO2(g) ∆H = –1452.8 kJ/mol    a. Is this reaction endothermic or exothermic? (2 points)b. What is the value of ∆H if the equation is multiplied throughout by 2? (2 […]

Written assignment 2: atomic structure and chemical compounds

   Written Assignment 2: Atomic Structure and Chemical Compounds Answer all assigned questions and problems, and show all work.  1. What is the mass number of an iron atom that has 28 neutrons? (3 points) (Reference: Chang 2.13) 2. Calculate the number of neutrons of 239Pu. (3 points) (Reference: Chang 2.14) 3. Write the appropriate […]

Case study | Chemistry homework help

Read chapters 4, 5 and 6 of the text (textbook link provided below) and the case studies at the end of these chapters. Then answer the questions about the Rocky Mountain Outfitters case studies at the end of these chapters. Make answers short (2-3 sentences).    Textbook Systems Analysis and Design Satzinger, Jackson, and Burd […]

Time and temperature discussion- please give me your view point with

Chocolate, I think chocolate is a good example of cooking low and slow. When cooking chocolate, there are a couple ways this can be done. The first one is on the stove right in the pan. When cooking chocolate on the stove you have to be careful you don’t burn it with having the temperature too high. If the temperature is […]

Occupational safety | Chemistry homework help

I need someone to write me half a page paper following the insturctions below. The due date is in 12 hours. I am willing to pay $8. Here are the instructions by the doctor:     Hello Class, This is our second discussion question, it is optional and for extra credit only.  You will need […]

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