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Viziscience
United States
เข้าร่วมเมื่อ 14 มิ.ย. 2016
Viziscience® is a visual learning platform for mastering high school chemistry concepts.
Here are some awesome ways you can use Viziscience to modernize the traditional classroom:
• Labs
• Flipped classroom
• Homework
• Self-directed learning
Here are some awesome ways you can use Viziscience to modernize the traditional classroom:
• Labs
• Flipped classroom
• Homework
• Self-directed learning
periodic table organization shorter version of trend
The periodic table is organized to help us understand the properties of elements. Rows, called periods, show elements in order of increasing atomic number (the number of protons in the nucleus). Each new period represents a new electron shell around the nucleus. Moving from left to right across a period, each element has one more proton and electron than the last.
Columns, or groups, contain elements with similar properties because they have the same number of valence electrons (electrons in the outermost shell). For example, all elements in Group 1 have one valence electron, which gives them similar reactivity. Groups also help explain trends, like why elements at the top of a group are often smaller and more reactive than those at the bottom.
This organization makes it easier to understand periodic trends in atomic radius, ionization energy, and electronegativity-patterns that emerge across periods and down groups.
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Chemistry concept videos for high school & secondary school students
Columns, or groups, contain elements with similar properties because they have the same number of valence electrons (electrons in the outermost shell). For example, all elements in Group 1 have one valence electron, which gives them similar reactivity. Groups also help explain trends, like why elements at the top of a group are often smaller and more reactive than those at the bottom.
This organization makes it easier to understand periodic trends in atomic radius, ionization energy, and electronegativity-patterns that emerge across periods and down groups.
Website: viziscience.com
©Copyright Meerwebs LLC, Viziscience.com
Chemistry concept videos for high school & secondary school students
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Coulomb’s Law and Atomic Structure: Understanding Periodic Trends
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Explore Coulomb’s Law and how it applies to atomic structure, influencing periodic trends like atomic radius, electronegativity, and ionization energy. This AP Chemistry and GCSE Chemistry video breaks down why atoms behave the way they do, using Coulomb’s Law to reveal the patterns across the periodic table. #apchemistry #gcse #apchem 1. Atomic Radius Definition: The atomic radius is the dista...
The Wave Function & Electron Cloud
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Website: viziscience.com ©Copyright Meerwebs LLC, Viziscience.com Chemistry concept videos for high school & secondary school students
Periodic Table Basics: Identifying Metals, Non-Metals, and Understanding Ionic vs. Covalent Bonds
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Website: viziscience.com Chemistry concept videos for high school & secondary school students Learn how to use the periodic table to identify metals and non-metals, and distinguish between ionic and covalent compounds. Perfect for beginners in chemistry! #PeriodicTable #ChemistryBasics #NamingCompounds #IonicVsCovalent #MetalNonMetal #ChemistryEducation #LearnChemistry #ChemistryForBeginners #S...
Phase change
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Website: viziscience.com ©Copyright Meerwebs LLC, Viziscience.com Chemistry concept videos for high school & secondary school students
Flexible Curriculum Planning with VZSmartPlanner
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Website: viziscience.com ©Copyright Meerwebs LLC, Viziscience.com Chemistry concept videos for high school & secondary school students Discover how VZSmartPlanner can transform your curriculum planning process. This easy-to-use tool allows you to create a visual timeline of your pacing guide with just a click. Enter key dates and lesson details into three separate spreadsheets, and let VZSmartP...
VZAPP USER MANUAL HOW TO INSTALL
มุมมอง 294 หลายเดือนก่อน
Website: viziscience.com ©Copyright Meerwebs LLC, Viziscience.com Welcome to our step-by-step guide on setting up the VZSmartPlanner! In this video, we'll walk you through creating essential templates for your Data, Holidays, and Lessons sheets. Learn how to generate and customize your pacing guide and visual chart to ensure balanced coverage of all topics. If you have any questions or need fur...
Webb's Depth of Knowledge (DoK) vs Bloom's Taxonomy - Guide for Chemistry Teachers
มุมมอง 136ปีที่แล้ว
Website: viziscience.com ©Copyright Viziscience® Teaching pedagogy videos for high school & secondary school students Title: Simplifying Depth of Knowledge (DOK) for High School Chemistry: 3 Levels Explained #education #pedagogyandragogyandassessment #bloomstaxonomy #chemistryteachers #apchemistry #highschool #assessments Welcome to our educational channel! In this video, we'll break down the c...
Mastering Relative Rates of Reaction: Using Stoichiometric Ratios
มุมมอง 363ปีที่แล้ว
#kinetic #apchemistry #apchem #gcsechemistry In this video, we'll explore the concept of relative rates of reaction, an important topic in high school chemistry. You'll learn how to use stoichiometric ratios to calculate the rates of reactants disappearing or appearing during a chemical reaction. We'll use an analogy of a car factory to help you understand this concept. By the end of the video,...
What's a mole in chemistry?
มุมมอง 8072 ปีที่แล้ว
Website: surfuppy.com For Honors and AP chemistry, visit: viziscience.com Chemistry concept videos for high school & secondary school students In 12 g of carbon there are 6.022 x 10²³ atoms. 1 mole is defined as the number of atoms in 12 g of carbon. In other words, 1 mole of carbon contains 6.022 x 10²³ atoms!
Why is water polar? Why does water have a bent shape?
มุมมอง 29K3 ปีที่แล้ว
Join us - www.tiktok.com/@viziscience #apchem #apchemistry #polarity #electronegativity #gcsechemistry Why is water polar? The water molecule is made of an oxygen atom covalently bonded to two hydrogen atoms. A covalent bond is when a pair of electrons are shared between two atoms. However, in the water molecule, the bonds are polar. That is because the oxygen atom pulls the electrons closer to...
Viziscience Summer Free Course for AP Chemistry Students
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Website: viziscience.com Chemistry concept videos for high school & secondary school students
Significant figures interactive course for high school chemistry
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Significant figures interactive course for high school chemistry
Galvanic Cell or Voltaic - how it works - high school AP chemistry
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Galvanic Cell or Voltaic - how it works - high school AP chemistry
How Hydrochloric Acid reacts with water
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How Hydrochloric Acid reacts with water
What is neutralization of acids and bases?
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What is neutralization of acids and bases?
Why is water a polar molecule and has a bent shape
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Why is water a polar molecule and has a bent shape
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Permission to use your video in my school project
The 4 electrons on Oxygen could have been divided on both sides thus creating a balance on both side and 180 deg structure but all 4 electrons are on one side. why so?
Good observation! Because this is a 2D drawing, it's just a simplistic view. But in reality, the electron configuration is still spread out in a 3D tetrahedral arrangement. So you might get a better representation using a different type of drawing.
I would think the lone pair would be on opposite sides.
why did i get emotional watching water molecules
don't make me cry with that music🤣, great video tho
Explains everything perfectly
Nice
Love the music ❤❤
धन्यवाद सर पाण्याचा रेणू प्रभारीत का असतो याच छान स्पष्टीकरण दिलात
Up to this point, much of what we've learned from pictures and diagrams in our chemistry studies has been presented in two dimensions (2D). However, it's essential to remember that these visuals are simplifications, often offering a basic 2D representation, which doesn't capture the full complexity of three-dimensional (3D) reality. As you progress in your chemistry studies, it becomes crucial to visualize how electrons interact and consider electron clouds and density, as these factors significantly influence the shape of molecules. It's important to note that the simple straight-line bonds you often see in 2D representations, like those in a water molecule, don't exist in reality. So you must use your imagination to visualize how the forces work. One helpful analogy is to think of forces that repel or attract two magnets
Perfect man ..thanks ❣️
Thankyou so much sir, for better understanding about how water molecule got its shape ... I think my exams goes well this time..
Thank you 🎉🎉🎉🎉🎉 so much
If you like more of the work, visit Viziscience.com and Surfguppy.com
Well done!
love the song so calming
It was easily understandable unlike the other videos. I appreciate the hardwork and effort you put into this! It helped me alot for my exam preperation. Thankyou, you are a life saver!
Thanks for leaving your feedback. Hope your exams go well!
really good video jaajaj same from a test.
i have a doubt here but its clear now, thanks for good explanation with this amazing animation👍
I was waiting for the wedding to start while listening to that music.
Good ❤❤❤
Great 👍❤
Water molecules are made of 1Hydrogen atom and 2 Oxygen atoms always has and always will be regards Graham Flowers
Water is H2O, aka as dihydrogen oxide (translates to 2 Hydrogen,1 Oxygen). HO2 is hydrogen superoxide (1 Hydrogen, 2 Oxygen). The number denotes the number of the molecules in front of it, like in H2O2, hydrogen peroxide (1 Hydrogen per 1 Oxygen... "dihydrogen dioxide" is technically correct but unused, similarly to calling it 'water' rather than dihydrogen oxide).
@@RJay207 2H2O is also water
@@grahamflowers Okay.
Very beautifully explained. Please make more videos
Thank you! Any high school chemistry topics would you like explaining?
@@Viziscience yeah! I want the explanation of types of chemical bonding & redox reaction . If you provide me the videos then it will be a great help for me.🙏
@@sukumarmukherjee3219 Perhaps you can go over to the FB/viziscience page - there are some videos there - Here's one on balancing Redox reaction - facebook.com/viziscience/videos/2233227166949855
You still didnt answer the question as to why the water molecule is polarized due to the magnetic attraction and repulsion of the electron placement and the proton placement. When you showed the example of a nucleus with two e- bonds, the e- were 180 deg apart because the negative repulsion of the e- to the other e- is felt equally. So why does the P+ of the hydrogens bonding to the Oxygen not place the Hydrogens 180 deg away from each other if there are (2) e- pairs and (2) hydrogen bonds? 360deg divided by 2 equal forces of (+) and (-) of (2) electron pairs and (2) protons from the Hydrogens, each repelling force would be at its' maximum arc distance from its repellent charge. IE: The (2) electron bonds would be at N and S of the Oxygen and the (2) Hydrogen bonds would be at E and W of the Oxygen. Since the Oxygen has a stronger force to attract the e- to it, then the center would be more (-) and the outer would be more (+), but it the charges would still be in balance with no polarity of the water molecule. What is the reason for this unbalanced distribution of charge because these charges should be at 90 degs of each other and 180 degrees from their same charge, but they're not. The (+) charges are 104.45deg away from each other, not 180deg for a balancing of the magnetic forces. You show the (2) H+ bonding to the Oxygen at 90 deg from each other and then their + repulsion pushes them away but the (-) of the e- pushes back creating the 104.45 deg arch. But you dont explain why the H+ would bond 90 deg from each other instead of 180deg from each other to the Oxygen. Because in a full valence shell, the e- distribution is 90 degree from each electron. So when H+ comes to bond with the Oxygen molecule, the e- to bond with would be 90 degree from the other e- and the 2nd H+ would bond as far from the 1st hydrogen, which would be 180 deg away at 1:32. What causes the uneven (-) electron and (+) proton distribution you show at when the image changes from 1:32 to 1:33?
To answer your question, the uneven distribution of charges in a water molecule is due to the difference in electronegativity between oxygen and hydrogen atoms. Oxygen is more electronegative than hydrogen, which means that the electrons in the covalent bond between the oxygen and hydrogen atoms are pulled closer to the oxygen atom, creating a partial negative charge on the oxygen and a partial positive charge on the hydrogen atoms. This creates a dipole moment in the molecule, making it polar. Regarding the angle between the hydrogen atoms, the bonding angle of 104.45 degrees is due to the repulsion forces between the electrons in the oxygen atom and the hydrogen atoms. These repulsion forces cause the hydrogen atoms to be pushed away from each other, resulting in the observed angle. In summary, the uneven distribution of charges in a water molecule is due to the difference in electronegativity between the atoms, and the bonding angle between the hydrogen atoms is due to the repulsion forces between the electrons in the oxygen atom and the hydrogen atoms.
Thank u very much this was very clear and interesting
Glad it was helpful!
Great animation 👌👌👌🙏
Glad you liked it!
Thank you!
Well explained👍🏻👌👍🏻👍🏻
i enjoyed the vid thank you
Thank you 💓
I don't understand 😅😅🙄🙄😭😭
teached good and I learn it easily
Too good👏👏👏👏👏👏👏👏👏👏
very nice
Nice
Super helpful and easy to understand!!!
If you are a high school or college student, I have a super website that you might find useful for helping you learn general chemistry quickly. Just send your email to contact@viziscience.com.
This videos is intended for high school general chemistry level. The 2d animation cannot fully explain how electrons are placed around an atom in a 3d space. The video illustrates the following point - A water molecule is made of 1 oxygen atom and 2 hydrogen atoms. The bonds are covalent, it means the electrons are shared. However, oxygen is more electronegative than hydrogen, it attracts the electrons closer to itself. So covalent bonds are formed, the electrons are shared but just not equally. This causes a polarity to form - a slightly negative charge around the oxygen atom where the electrons hang out more often and positive charge around the hydrogen atom. The bent shape is due to the pair of lone electrons repulsing each other and pushing the hydrogen atoms closer to each other. That's all the video is meant to illustrate for those who are completely new to this concept.
Electrons are all negatively charged. Like two south sides of magnets, like charges repel each other. They are attracted to the positively-charged protons in the nucleus, and rely on energy to orbit the nucleus rather than just “fall in.” It takes more energy to be farther away from the nucleus, so generally electrons are as close as practical. This attraction and repulsion combination means that electrons generally stay as far away from each other as they can, so long as they still have the energy to be in those places. Have you covered electron cconfiguration yet? If not, look it up if you are confused. Oxygen is very electronegative - it wants to gain electrons to have a negative charge. This is because it only needs 2 electrons to have an electron configuration which resembles a noble gas, neon, which is more stable (less able to be changed) than a neutral oxygen atom. Hydrogen prefers to give up an electron, to just have a nucleus without electrons around it. As a result, each hydrogen in water (H2O) gives an electron to the oxygen atom, meaning each hydrogen atom has 0 electrons, and the oxygen atoms has (6 initial + 2 from hydrogens =) 8 electrons in it's valence (outermost) level of electrons. Electrons tend to pair up into “up” and “down” electrons because of some quantum chemistry called the Schrödinger Equation. These pairs occupy different levels (rows), orbitals (s, p, d, f, etc), and sub-orbitals (p1/2, for example) which provide unique solutions to the Schrödinger Equation. It turns out that the valence level of oxygen has room for 4 pairs of electrons in the s and p orbitals - and this is the key. If you have a flat piece of paper, and I asked you to draw four lines from a point so that the lines were as far apart from each other as possible, what would the angle between the points be? Now imagine in 3D I asked you to do the same thing. It wouldn't be the same (spoiler:) 90 degrees, because that would just be in a single plane - you can separate them further by moving them around and creating a tetrahedron (a triangle-bottomed pyramid). What are the angles of a tetrahedron? A 180° water would only have the lone pairs around the “belt” of the oxygen - 90 degrees away from the hydrogens, and therefore less separated than a tetrahedron. As one of the other authors aluded, it isn't a perfect tetrahedron. That's because you have two different things around the oxygen - lone pairs of electrons and hydrogen atoms take up different spaces and have different repulsions. By contrast, the tetrahedral methane (CH4) with perfect tetrahedral symmetry does perfectly match the angles of a tetrahedron.
Water is a molecule and not an ionic compound. The hydrogen atom does not give up it's electron to oxygen. In this case, the electronegativity difference does not strip hydrogen off its electron, so I'm not really understanding your part in saying that hydrogen gives up an electron. In some of the higher chemistry videos we show the difference between molecular shape and electron geometry. It's not practical to incorporate all concepts into one short simple video which will be very confusing for the basic level.
red or blue litmus paper kis water me dala hai simple water me na
thankx
I needed to find this out for one of my science classes, so the vid was really helpful.
Glad it was useful and thanks for using the video!
Checkout my science blog too - viziscience.com/blog