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How does Atoms and molecules interact with each other to help healthcare professions do their job?.

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First, I'm not a Medical representative.
* Check with your doctor for advice.

*** Following is for information only.***
* Gas, (Different Gases used in medical industry.) have uses in aiding the doctor to comfort, give aid, and keep area clean to control germs.
* See wikipedia for specific information on medical use of gases.; https://en.wikipedia.org/wiki/Medical_gas_supply
Aloha, ukeboy57

Posted on Sep 09, 2018

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What is isotope?


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What does it mean if there isn't a subscript number in a chemical formula?


It means just one atom of an element is present in the molecule, or that just one group of several different atoms is present.
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Would changing the atoms in water would it separate from what is attached.


Changing the atoms how? It takes a lot of energy to do that, and afterward it is not water anymore but some other substance, oxygen and hydrogen.

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What is the measure of the average amount of kinetic energy of the atoms are molecules in a material


The average kinetic energy of a distribution of free non-interacting particles is related to the absolute temperature.Thus the absolute temperature is a measure of the average kinetic energy of the population.

May 09, 2014 | Computers & Internet

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How many atoms of hyrdrogen gas in tow moles how


Hydrogen gas is a diatomic substance: Each molecule contains two hydrogen atoms.
A mole of hydrogen gas contains 6.02*10^23 hydrogen molecules, but since each molecule contains 2 hydrogen atom you have 2*6.02*10^23=?
The formula for nitric acid is HNO_3. It contains 5 atoms regardless of the elements
Now, 0.25 moles contain 0.25* 6.02*10^23 molecules oh nitric acid, ans since each molecule contains 5 atoms then 0.25 moles contain 0.25*5*6.02*10^23=? atoms
0.25*1*6.02*10^23 of hydrogen atoms, and the same number of nitrogen atoms and 0.25*3*6.02*10^23 oxygen atoms.

Oct 01, 2013 | Cars & Trucks

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Molecule paraffin has the formula C20H44.


If such a molecule exists It has 20 Carbon atoms, and 44 Hydrogen. Paraffin is sometimes used as a generic name for alkanes (C_n.H_2n+2). That is not what you have. I doubt that it exists.

Aug 08, 2012 | Prentice Hall General Chemistry:...

1 Answer

How many grams of aluminum acetate contain 2.24 x 1022 atoms of hydrogen?


1 Look up the formula for the aluminum acetate.
2 Count the number of Hydrogen atoms per molecule: Call that nH.
3 Dividing 2.24*10^22 by nH you get the number of molecules of acetate.
4. Divide that number by Avogadro's Number to obtain the number of moles required.
5. Multiply the number of moles by the molecular mass of the aluminum acetate (look it up or use the periodic table to calculate it), you will get the mass of aluminum acetate that contains 2.24*10^22 hydrogen atoms.

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What is matter?


Matter is a substance that has inertia and occupies physical space. According to modern physics, matter consists of various types of particles, each with mass and size.
The most familiar examples of material particles are the electron, the proton and the neutron. Combinations of these particles form atoms. There are more than 100 different kinds of atoms, each kind constituting a unique chemical element. A combination of atoms forms a molecule. Atoms and/or molecules can join together to form a compound.
Matter can exist in several states, also called phases. The three most common states are known as solid, liquid and gas. A single element or compound of matter might exist in more than one of the three states, depending on the temperature and pressure. Less familiar states of matter include plasma, foam and Bose-Einstein condensate. These states occur under special conditions.
Different kinds of matter can combine to form substances that may not resemble any of the original ingredients. For example, hydrogen (a gaseous element) and oxygen (another gaseous element) combine to form water (a liquid compound at room temperature). The process of such combination is called a chemical reaction. A chemical reaction involves interactions between the electrons of the atoms, but does not affect the nuclei of the atoms.


I hope you find it very helpful. Best regards.

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What is the electron dot diagram for nitrogen


The electron-dot structure (also known as the "Lewis dot structure") for N is shown below:dubblea_6.jpg The red dots represent electrons that comprise the atom's 5 valence electrons. Recall that the valence (outermost) electrons are those that are involved in chemical reactions of bonding. The rule you should apply to drawing this electron dot structure is to first draw (or imagine) a rectangle around the atom's symbol, letting the rectangle represent the atom's core electrons (not shown), those within the atom's inner (s) shell. Then place one electron on each side. That leaves the remaining electron to be placed on one of the already occupied sides to give the electron pair.

It doesn't matter what side you place this 5th electron, because the final result is the pattern shown above, 3 single dots and one pair of dots, which neatly reveals the bonding power* of N (3) - and the existence of the one electron pair, which predicts special types of reactivity you will probably appreciate in more advanced topics of this element's behavior.

*The single electrons are more reactive than the electron pair, and will readily form bonds with other atoms, such as H. This allows you to predict that N and H atoms will combine to form NH3.

How do you know there are 5 valence electrons? For the answer, refer to the following partial image of the Periodic Table of the Elements I drew using Word and SnagIT software:
dubblea.gif
Notice the number-letter labels above each column ("group") of elements, for example "5A." The letter A indicates the groups of "representative" elements, the most common elements studied in general chemistry courses. The numbers before the "A" represents the number of valence electrons surrounding each element's atoms. For example, hydrogen has one valence electron, nitrogen has 5 valence electrons, and oxygen has 6 valence electrons.

Using the rules described above for drawing electron-dot structures, how many single dots and double dots should be drawn around H? Around O? Can you predict the bonding power of each of these atoms? What molecular compounds do you predict would be formed from the reaction of H and H? What molecular compound do you predict would form between combining H atoms and O?

Hints:
Reactions tend to occur that cause the single electrons (dots) to pair up. This occurs because paired electrons are much more stable than single electrons. A strong driving force for a reaction is the going from a less stable state to a more stable state. Hydrogen atoms from H2 molecules (diatomic molecules). H and O atoms combine to form dihydrogen oxide, also known as water!

Summary:
  • A very simple set of rules allows you to predict the electron dot structures of the representative elements.
  • The electron dot structures are very useful, because they can allow you to predict the bonding power of each representative element.
  • They are also useful in guiding your prediction of the compositions of molecules that can form during reactions between their atoms (that is, how many of each element in the molecule).
  • In more advanced topics you will also be able to use electron-dot structures to predict the shapes (or geometry) of molecules, including bond angles!
  • So, learning the skill of drawing electron-dot structures is very important to mastering chemistry!

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Nov 04, 2010 | Scientific Explorer My First Chemistry Kit

1 Answer

How do I calculate this question with the fx-115es. Find the number of moles of nitrogen in 1.75 mol N2H4?


You have 1.75 moles of hydrazine or 1.75xNa molecules of the substance. Since each molecule of N2H4 contains 2 atoms of nitrogen 1.75Na molecules contain 2x1.75xNa atoms of nitrogen. The number of moles of nitrogen is 2x1.75xNa/Na, which leaves 2x1.75 or 3.5 moles.
Your answer: 1.75 mol of hydrazine contain 3.5 mol of nitrogen atoms.

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