daxyy

It 2-4dimethykheptane chiral in chemistry

1.

The masses should be stated in both grams and in amu units. Explain the origin of the amu. Describe various atomic models noting the timeline for each model, including contributions (discovery/philosophy) made by Aristotle, Democritus, Dalton, Thompson, Rutherford, Chadwick, and Bohr. Explain how Rutherford’s gold foil experiment was conducted. What did (would) Isaac Newton think about the “modern” atomic structure?

2.

Electron configurations, especially valence electrons, are useful for understanding how an atom bonds with other atoms to make compounds. Provide an electron configuration for your favorite transition metal. Explain how the periodic table is set up to make “seeing” valence electrons easier. Describe the terms ionization energy and atomic radius. How are they related to each other? Explain the shapes of the s, p, d, and f orbitals and the difference between an orbit and an orbital.

3.

Although the original definition of an atoms, was that they were indivisible (uncuttable) and that all atoms of the same element were identical, not all atoms of an element are not all the same and atoms can not be split. Describe any element that exists as a mixture of isotopes and how the atoms of that element are different. Differentiate the terms isotope and nuclide. Describe how atoms can be split.

4

Define the photoelectric effect and describe how Planck and Einstein contributed

5

Determine the number of protons, electrons and neutrons in an atom of sodium and an ion of sodium with a 1+ charge. Which is more stable? Why? Determine the number of protons, electrons and neutrons in an atom of oxygen and an ion of oxygen with a 2- charge. Which is more stable? Why? Explain why the most common compound of Sodium (Na) and Oxygen (O) is Na₂O.

6

Write the formula of the product for and show a balanced chemical (use symbols) equation for the reaction of:

Sodium and chlorine yields ?

Magnesium and oxygen yields ?

Iron and oxygen producing ferric oxide (iron III oxide)

Methane and oxygen yielding carbon dioxide and water.

Sulfuric acid and sodium hydroxide yields ?

PART A - Which of the following represents a state of matter?

- volume

- solid

- melting point

- density

PART B - What types of atoms make up hydrogen peroxide?

PART C - Which of the following statements is TRUE?

- Hydrogen peroxide can be used as a drink and can be used to bathe in. - Both water and hydrogen peroxide are stable molecules. - Hydrogen peroxide is smaller than water. - Hydrogen peroxide is used as rocket fuel and removes color from hair.

PART D - What does Dalton's Atomic Theory say?

- the properties of matter are determined by the properties of atoms - matter is composed of small indestructible particles - energy is neither created nor destroyed during a chemical reaction - an atom is predominantly empty spacean atom is predominantly empty space

How does Dalton's atomic theory account for the fact that when 1.000g of water is decomposed into its elements, 0.111g of hydrogen and 0.889g of oxygen are obtain regardless of the source of water

What is civil engineering?

problem 3 www 1245 ir spectrum 2984 1741 1200 800 0.0 4000 3000 2000 1600 v (cm) mass spectrum 100 0.5 43 1 uv spectrum 60 40 1.0 % of base peak 29 m88 solvent: ethanol 15.4 mg/10 mis path length: 1.00 cm 20 c_{4}*h_{8}*o_{2} 1.5 350 80 240 200 280 200 40 120 160 m/e 250 300 λ (nm) 13c nmr spectrum 150.0 mhz, cdc, solution) dept c*h_{2} + ch, ch solvent proton decoupled 200 160 120 80 40 0 8 (ppm) th nmr spectrum (200 mhz, cdc*l_{2} solution) tms t 10 9 8 7 6 5 4 3 2 1 0 8 (ppm)

A certain aqueous solution of sucrose at 25oC has a vapor pressure of 23.34 torr (a unit for pressure). The vapor pressure of water at 25oC is 23.76 torr. Find the activity of the solvent water in this sucrose solution. 

Describe the features and benefits of home birth  vs. hospital birth

250 words.

Subject- public speaking

It's critical to keep in mind the time limits of the assignment as you brainstorm topics for your problem-solution speech. You must choose a problem and solution that you can explain in just four to six minutes.

Also, keep your audience in mind. You will present your speech to a group in your community. What problems might interest them? Consider and respond to these prompts below:

• Think about your experiences in your community. What unmet needs do you notice? What minor or major inconveniences need attention? What interesting improvements or programs might your community benefit from? Make a list.

• For each problem on the list, brainstorm possible solutions.

• Choose the three problem-solution ideas that strike you as most interesting and promising.

What difficulties would you have to take into account when giving a presentation online? Give some examples of how you might get beyond these obstacles.

What sorts of presentation media (such as Powerpoint with voice-over/script, video, PowToons, etc.) are you considering for your final story presentation to support your mode of delivery? Discuss the benefits and drawbacks of each of these choices.

What choices do you intend to make in order to get ready for this capstone project after considering your final presentation? How precisely will you carry out these preparations to ensure that you are ready?

Why do you think some people are offended by public breastfeeding but not offended by public advertising that shows much more revealing images (I am thinking of a well known undergarment store)?

100 words

For this assignment, choose one picture or image from your environment, or one that you really
like (could be an image found online) that you will analyze using concepts from sensation and
perception. To be specific, you can use any monocular cue to 3-D perception, such as relative
size, relative height, shadow, occlusion, linear perspective, etc…).

The goal of this assignment is for you to be able to communicate important concepts in Depth
perception. These concepts help form our perceptions and understanding of the world around
us.
Your selected picture should be copied and pasted into a Word document (see my image
above). Below your picture, you will use a minimum of five perceptual concepts (monocular
cues) to explain and analyze your image. In other words, how is depth perception conveyed in
your image? Name the monocular cue, explain what it is or how it works, and describe where in
the picture we can observe it. Explain this in plain English, using simple terms. You will then
upload your assignment in the Lea Dropbox by Nov. 2.
Each picture/image analysis will be graded based on how well you (a) follow the instructions
here, (b) copied and pasted a picture from your environment into a Word file, and (c)
communicate correct information. If you do all of these things, you will get full credit. If you
don’t (e.g., you don’t enter an explanation of the image analysis along with your image file,
your analysis/explanation makes no sense, or your analysis contains inaccurate information,
etc…), you will lose points according

CHOSE ANY PIC FROM GOOGLE AND LET ME KNOW URGENT

Think of a movie where the actors have portrayed somebody from a different dialect area and either succeeded so well that they fooled you or failed miserably. What about linguistic stereotypes? Can you think of any linguistic stereotypes you noticed in a movie? 

Your answers should not be more than a paragraph. Simply think of linguistic stereotypes of a particular accent or dialect in a movie. Ensure to include the film's name and character(s). 

Here are two sample:

Response#1: In Deadpool and Deadpool 2, a character named Dopinder is an Indian cab driver. He only appears in the films briefly, but his role is a stereotype in that one of the few jobs Indians do is drive cabs. Although, that may be the only or one of the few stereotypes portrayed about this character. In the first film, he is only in a quick scene, while in the second film, his character develops a story arc, which is rare for these types of roles. Dopinder is played by Karan Soni, who is of Indian descent but born in America. Therefore, Soni has no Indian accent in his regular speech. However, when he plays Dopinder, his character has an Indian accent, which is done well. It sounds like he uses the retroflex ‘t’ and ‘d’ instead of alveolar ‘t’ and ‘d’, a noticeable and well-known marker for the Indian accent.

Response#2: In the movie Titanic, a character named Rose Dewitt Bukater is portrayed as a wealthy American Socialite. Rose, the film's main protagonist, is played by Kate Winslet, a British actress. Kate Winslet was born in England and, therefore, acquired English with a British accent, showing different pronunciations, grammar, vocabulary, etc. One of the most common differences between American and British accents is the pronunciation of /r/ in the middle or ending of a word. British people typically pronounce /r/ when it appears at the beginning of words. However, American people tend to pronounce /r/ throughout the term. This is demonstrated as Kate plays the upper-class, all-American character Rose; she can produce a compelling American accent due to the pronunciation of /r/ in words like “nerve.” The upper-class status of Rose is reflected through her dialogue speech. Rose uses standard and sophisticated language in all contexts; she even uses formal vocabulary when referring to other people. This is evident in her conversation with Jack:

Jack: “Well, it's a simple question. Do you love the guy?”...

Rose: “You are rude and uncouth, and presumptuous…Jack... Mister Dawson, it's been a pleasure.”

As seen in the conversation, when Rose refers to Jack by his first name, she corrects herself and calls him “Mister Dawson.” Instead, Jack (a lower-class artist) refers to the other person as a “guy.” In addition, Jack utilizes informal language, such as pronouncing “you” as /ja/, contrasting Rose’s formal speech. Lastly, Rose uses super polite forms such as “forgive me” when she disagrees with other men, then explains her reasoning. This presence of euphemism aligns with Lakoff’s claim on women’s speech, where women’s speech reflects their subordinate status in society.