Archive for the 'health' Category

Coordinate/Dative Covalent Bond [GCE A Level Chemistry]

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Learn what is a co-ordinate/dative covalent bond and when does such a bonding occur. #chemistry #bonding #alevel

A coordinate or dative bond is basically when an atom donates a pair of electrons to another atom, hence forming a joined covalent molecule. In order for a pair of electrons to be donated successfully, one of the atoms must have a lone pair of electrons while the other atom must have a vacant, low-lying orbital to accept the lone pair of electrons.

In this video, we will cover the following areas:
0:00 – Introduction
0:05 – What is a coordinate/dative bond?

0:14 – When does this occur?

0:59 – More examples

Music: Walk
Musician: @iksonmusic
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Now that we’ve made it through the periodic table, it’s time to look at transition metals and the coordination compounds they can form. What types of ligands can they interact with, and how? What shapes do they make? There is so much to talk about!

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Coordination Compounds: Geometry and Nomenclature

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Coordination Compounds: Geometry and Nomenclature

We have been learning a lot about a wide variety of compounds, but we haven’t really looked much at the transition metals. These also form compounds called coordination compounds, and the types of bonds involved in these compounds is quite a bit different from what we are used to, as are the geometries they adopt. Let’s go over the basics regarding these types of compounds, including how to name them.

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Plotting Points In a Three Dimensional Coordinate System

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This calculus 3 video explains how to plot points in a 3D coordinate system. It contains a few examples and practice problems.

3D Coordinate System: https://www.youtube.com/watch?v=EzJP9uwV3ms

3D Distance Formula:

Equation of a 3D Sphere:

Calculus 3 – Intro to Vectors:

Calculus 3 – The Dot Product:

_______________________________
Angle Between Two Vectors:

Parallel & Orthogonal Vectors:

Direction Cosines and Vectors:

Calculus 3 – Vector Projections:

Cross Product of 2 Vectors:

_______________________________
Area – Vector Cross Product:

Triple Scalar Product:

Vector Equations of Lines:

The Equation of a Plane:

Planar Equation – 3 Points:

________________________________
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10 Coordination Of Benefits

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How To Fix Medicare Coordination Of Benefits Issues

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When transitioning to Medicare, sometimes you need to take action in order to ensure your medical and drug claims are processed correctly. Who is primary? Who is secondary? We’ll show you how this works and how to fix any coordination issues. See more at our blog: http://bit.ly/fixmedicarecoordination

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FOUNDATION: Control and Coordination PART – 1 (BIOLOGY) | CBSE 10 | Tony Sir | Xylem CBSE 10 Tamil

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Join the Amoeba Sisters on this introduction to the Nervous System! This video briefly describes the division of the central nervous system (including going over some general areas of the brain) and the peripheral nervous system before exploring some divisions of the peripheral nervous system (somatic and autonomic, parasympathetic and sympathetic). Then the video outlines glial cells and neurons before introducing the action potential and neurotransmitters.

TABLE OF CONTENTS:
00:00 Intro
00:46 Starting Tour of Nervous System
1:13 Central and Peripheral Nervous System
1:37 Brain
3:05 Divisions of Peripheral Nervous System
3:44 Sympathetic and Parasympathetic
4:45 Neurons and Glia
6:19 Action Potential
9:10 Neurotransmitters
10:06 Recap of Video
—————
FACTUAL REFERENCES:
Betts, J. Gordon, et al. “12.1 Basic Structure and Function of the Nervous System – Anatomy and Physiology 2e | OpenStax.” Openstax.org, OpenStax, 20 Apr. 2022, openstax.org/books/anatomy-and-physiology-2e/pages/12-1-basic-structure-and-function-of-the-nervous-system.

Clark, Mary Ann, et al. “35.3 the Central Nervous System – Biology 2e | OpenStax.” Openstax.org, Openstax, 28 Mar. 2018, openstax.org/books/biology-2e/pages/35-3-the-central-nervous-system.

Urry, Lisa A, et al. Campbell Biology. 11th ed., New York, Ny, Pearson Education, Inc, 2017.

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FURTHER READING SUGGESTIONS:

Explore the action potential! https://openstax.org/books/anatomy-and-physiology-2e/pages/12-4-the-action-potential

A little more about somatic vs autonomic reflexes? https://open.oregonstate.education/aandp/chapter/16-2-autonomic-reflexes-and-homeostasis/

Glial cells and action potentials? Fascinating! https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2756778/
[By the way, this video is focused on the nervous system – but action potentials can happen in other cell types (like muscle cells) too!]

An interesting read about common myths about the brain https://www.scientificamerican.com/article/5-common-myths-about-the-brain/

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The Amoeba Sisters videos demystify science with humor and relevance. The videos center on Pinky’s certification and experience in teaching biology at the high school level. Amoeba Sisters videos only cover concepts that Pinky is certified to teach, and they focus on her specialty: secondary life science. Learn more about our videos here: https://www.amoebasisters.com/our-videos

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Linear Algebra – Lecture 31 – Coordinate Systems

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In this video, I review the definition of basis, and discuss the notion of coordinates of a vector relative to that basis.

The properties of a basis of a subspace guarantee that a vector in that subspace can be written as a linear combination of the basis vectors in only one way. The weights in that unique linear combination are called the coordinates of the vector relative to that basis.
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We learned about how vectors can form a basis for a vector space, and we can express any vector within a vector space as a linear combination of the basis vectors. But there can be more than one set of basis vectors. What if we want to express a vector using some other basis rather than the standard basis? Well we can implement a change of basis, so let’s learn how to do that!

Script by Howard Whittle

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Find the B-coordinates of a Vector Given Coordinates Relative to Standard Basis (R3)

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Find the B-coordinates of a Vector Given Coordinates Relative to Standard Basis (R3)

This video explains how to find the standard basis coordinates of a vector given a nonstandard basis and nonstandard coordinates.
https://mathispower4u.com
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Coordinate Covalent Bond

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This lecture is about coordinate covalent bond in chemistry. I will also teach you the difference between covalent bond and coordinate covalent bond. In the last part, you will learn exam question: why carbon mono-oxide form coordinate covalent bond. You will the super easy concept of coordinate covalent bond with many examples.

To learn more, watch this lecture till the end.

#coordinatecovalentbond
#covalentbond
#chemistry
#najamacademy

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You can find all my A Level Chemistry videos fully indexed at https://www.freesciencelessons.co.uk/a-level-revision-videos/a-level-chemistry/

In this video, we look at a special type of covalent bonding called dative covalent bonding. I explain to you what is meant by a dative covalent bond and look at the conditions required to form a dative bond. I then discuss the features of a dative covalent bond and show you two examples of molecules which contain a dative covalent bond.

This video is aimed at the UK A Level Chemistry specifications. Students studying International A Level Chemistry will need to check their specification.
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