In this video, I have tried to answer all Questions of UNEB Sub ICT 2023 Paper 2. Hopefully, it helps you in your revision and practice, and those who didn't do the paper can learn more from it as well.

I welcome comments on guidance in case a certain Roman (Question) was not well addressed.

Subscribe and Share

Thank You

More Video Lessons on Word Processing By Kakuru Benard
Wakisha 2023: https://youtu.be/U5-oYEIUn5o
UNEB 2023 Paper 2: https://youtu.be/jAgtwfS6OC8
UNEB 2023 Paper 3: https://youtu.be/E2bwpS-Gwgw
UNEB 2023 Paper 1: https://youtu.be/GWRXjetAjpg
Video Lesson 1: https://youtu.be/8UWPkwAa-aw
Video Lesson 2: https://youtu.be/5MpYW2UpjLE
Video Lesson 3: https://youtu.be/zJVc7uf4Yv0
Video Lesson 4: https://youtu.be/Uduj1Oy9wuM
Video Lesson 5: https://youtu.be/Leyk-oFaXao
Video Lesson 6: https://youtu.be/7DpogpO-5JM
Video Lesson 7: https://youtu.be/eST2AEijkek
Video Lesson 8: https://youtu.be/yxC7i2YZc_c
Video Lesson 9: https://youtu.be/G0fQz7kF6qI
Video Lesson 10: https://youtu.be/icnJVShMylA
Video Lesson 11: https://youtu.be/-wY36wLFhJY

Let's see how to use lens formula (1/v-1/u= 1/f) to locate images without having to draw ray diagrams.

Created by Mahesh Shenoy

That Bio Doc talks about the ways in which pathogens sneak past your defenses and cause an infection as well as the stages you go through when you are suffering from an infection. TBD also discusses epidemiology and the different types of epidemics.

Kasese is a district in western Uganda that is blessed with a variety of tourist attractions, including:

* The Rwenzori Mountains, Africa's third-highest mountain range, are a UNESCO World Heritage Site. The mountains are home to glaciers, snow-capped peaks, and a variety of ecosystems. Hiking, mountaineering, and sightseeing are all popular activities in the Rwenzoris.
[Image of Rwenzori Mountains, Kasese]
* Queen Elizabeth National Park is one of Uganda's most popular national parks. The park is home to a wide variety of wildlife, including lions, elephants, buffaloes, and chimpanzees. Visitors can enjoy game drives, boat cruises on the Kazinga Channel, and chimpanzee trekking in Queen Elizabeth National Park.
[Image of Queen Elizabeth National Park, Kasese]
* The Kazinga Channel is a 32-kilometer channel that connects Lake George and Lake Edward. The channel is home to a large population of hippos and crocodiles, and visitors can enjoy boat cruises on the channel to see these animals.
[Image of Kazinga Channel, Kasese]
* The Amabere Caves are a series of caves located near Kasese. The caves are named after their stalactites, which some people believe resemble breasts. The caves are a popular spot for hiking and sightseeing.
[Image of Amabere Caves, Kasese]
* The Semliki Valley National Park is a small national park located on the border between Uganda and the Democratic Republic of the Congo. The park is home to a variety of primates, including chimpanzees and bonobos. Visitors can enjoy hiking, chimpanzee trekking, and birding in Semliki Valley National Park.
[Image of Semliki Valley National Park, Kasese]

These are just a few of the many tourist attractions in Kasese. With its stunning scenery, diverse wildlife, and rich culture, Kasese is a great destination for travelers looking for an adventure.

The total solar eclipse captivated tens of millions across the country as 15 states were in the path of totality.


SUBSCRIBE: https://bit.ly/2Zq0dU5

SIGN UP to get the daily GMA Wake-Up Newsletter:
https://gma.abc/2Vzcd5j

VISIT GMA: https://www.goodmorningamerica.com

FOLLOW:
TikTok: https://tiktok.com/@gma
Instagram: https://instagram.com/GoodMorningAmerica
Facebook: https://facebook.com/GoodMorningAmerica
Threads: https://www.threads.net/@goodmorningamerica
X: https://twitter.com/gma

In this video, Anmol discusses how we can use zeros of the given polynomial to find the value of the given expression.

For more free lessons & practice - https://www.khanacademy.org/ma....th/in-in-grade-10-nc

Khan Academy is a nonprofit organization with the mission of providing free, world-class education for anyone, anywhere. We offer quizzes, questions, instructional videos, and articles on a range of academic subjects, including math, biology, chemistry, physics, history, economics, finance, grammar, preschool learning, and more. We provide teachers with tools and data so they can help their students develop the skills, habits, and mindsets for success in school and beyond. Khan Academy has been translated into dozens of languages, and 15 million people around the globe learn on Khan Academy every month. As a 501(c)(3) nonprofit organization, we would love your help!

Created by Anmol.

reality is an illusion we have been lied to

Let's figure out the angular position of maximas in Single slit diffraction!

00:16 Condition for destructive interference
03:04 Dividing the slit into three parts
06:30 Condition for constructive interference

Master the concept of Diffraction due to single slit through practice exercises and videos - https://www.khanacademy.org/sc....ience/in-in-class-12

Check out more videos and exercises on Wave optics - https://www.khanacademy.org/sc....ience/in-in-class-12

To get you fully ready for your exam and help you fall in love with Physics, find the complete bank of exercises and videos for Class 12 Physics here - https://www.khanacademy.org/sc....ience/in-in-class-12

Khan Academy is a free learning platform for Class 1-12 students with videos, exercises, and tests for maths, science, and more subjects. Our content is aligned to CBSE syllabus and available in Hindi, English, and many more regional languages.


Experience the joy of easy, seamless, accessible learning anywhere, anytime with Khan Academy.


Subscribe to our YouTube channel - https://www.youtube.com/c/khanacademy

As a 501(c)(3) nonprofit organization, we would love your help!
Donate here: https://www.khanacademy.org/donate?utm_source=youtube&utm_medium=desc

Created by Vibhor Pandey

The blue ink in your pin is made up of many different colors! We can even separate them!

Khan Academy is a free learning platform for Class 1-12 students with videos, exercises, and tests for maths, science, and more subjects. Our content is aligned to CBSE syllabus and available in Hindi, English, and many more regional languages.

Experience the joy of easy, seamless, accessible learning anywhere, anytime with Khan Academy.

Subscribe to our YouTube channel - https://www.youtube.com/c/khanacademy

As a 501(c)(3) nonprofit organization, we would love your help!
Donate here: https://www.khanacademy.org/donate?utm_source=youtube&utm_medium=desc

Created by Vibhor Pandey

#centumacademy, #moleconcept

In this video the following concepts have been discussed:

Stoichiometry
Limiting reagent
Numericals on Stoichiometry and LR

Author: RAMITA NANDY
__________________________
A STEP BY STEP GUIDE TO PREPARE FOR BOARDS & COMPETITIVE EXAMINATIONS This session can be useful to students of high school of CBSE, ICSE, IGCSE or State Boards, as well as those who are preparing for competitive exams like NTSE, IIT JEE, NEET, KVPY, CET, Olympiads, Bank PO, CLAT, SAT, CAT, RMO, PRMO, GMAT, GRE, UPSC Civil Services Examination, NDA

For more such
a) Sessions and courses,
b) Practice worksheets,
c) MCQ Quiz,
d) Self-Assessment Tests,
e) Query resolution (through video conferencing)

please visit: https://centum.learnyst.com/learn

Website: https://centumacademy.com

Follow us for more interesting discussions on
https://facebook.com/centumacademy
https://instagram.com/centumacademy

Practice this concept - https://www.khanacademy.org/sc....ience/up-class-11-ch

Check out more videos and exercises on “Classification of elements and periodicity in properties” - https://www.khanacademy.org/sc....ience/up-class-11-ch


Khan Academy is a free learning platform for Class 1-12 students with videos, exercises, and tests for maths, science, and more subjects. Our content is aligned to CBSE syllabus and available in Hindi, English, and many more regional languages.


Experience the joy of easy, seamless, accessible learning anywhere, anytime with Khan Academy.


Subscribe to our YouTube channel - https://www.youtube.com/c/khanacademy

As a 501(c)(3) nonprofit organization, we would love your help!
Donate here: https://www.khanacademy.org/donate?utm_source=youtube&utm_medium=desc

Created by
Revathi Ramachandran

This is part of the IB's NEW Biology syllabus, which means you have exams in May 2025 or later. The videos were designed and recorded by Cheryl Hickman

Strong acids/bases dissociate completely whereas weak acids/bases dissociate partially.

This video talks about how we can use the reduction potential values to construct a galvanic cell.Practice this concept - “:electrochemistryTo get you fully ready for your exam and help you fall in love with “Chemistry", find the complete bank of exercises and videos for “Class 12 Chemistry” here - ⁣Sure! Let's practice constructing a galvanic cell using reduction potential values.

First, let's choose a redox reaction that has known reduction potential values. A common reaction that is often used in galvanic cells is the reduction of copper ions (Cu2+) by zinc metal (Zn) in a solution of copper sulfate (CuSO4):

Cu2+ + 2e- → Cu (reduction half-reaction, E° = +0.34 V)
Zn → Zn2+ + 2e- (oxidation half-reaction, E° = -0.76 V)

The reduction potential values (E°) for these half-reactions are given in volts (V). The reduction half-reaction has a positive E° value, indicating it is spontaneous in nature.

To construct a galvanic cell, we need two half-cells, each consisting of an electrode and an electrolyte solution. The reduction half-reaction will be our cathode (positive electrode), and the oxidation half-reaction will be our anode (negative electrode).

Now, let's assemble the galvanic cell step by step:

1. Start by creating the anode compartment: Place a strip of zinc metal (Zn) into a beaker containing a solution of zinc sulfate (ZnSO4). This is the anode half-cell.

2. Next, create the cathode compartment: Place a strip of copper metal (Cu) into a beaker containing a solution of copper sulfate (CuSO4). This is the cathode half-cell.

3. Connect the two half-cells: Connect a wire between the zinc metal in the anode half-cell and the copper metal in the cathode half-cell. This allows the flow of electrons through the wire from the anode to the cathode.

4. Complete the circuit: Connect the two half-cells using a salt bridge. A salt bridge can be made by soaking a piece of filter paper in a salt solution (e.g., KCl) and placing it between the two half-cells. The salt bridge completes the circuit and allows ions to flow between the two half-cells, maintaining electrical neutrality.

5. Observe the flow of electrons: Electrons flow from the zinc anode, where zinc atoms are oxidized, to the copper cathode, where copper ions are reduced. This flow of electrons generates an electric current that can be used to do work.

So, by using the reduction potential values, we have successfully constructed a galvanic cell using a zinc-copper redox reaction

Practice this concept - https://www.khanacademy.org/sc....ience/up-class-12-ch

Check out more videos and exercises on “Solutions” - https://www.khanacademy.org/sc....ience/up-class-12-ch

Khan Academy is a free learning platform for Class 1-12 students with videos, exercises, and tests for maths, science, and more subjects. Our content is aligned to CBSE syllabus and available in Hindi, English, and many more regional languages.


Experience the joy of easy, seamless, accessible learning anywhere, anytime with Khan Academy.


Subscribe to our YouTube channel - https://www.youtube.com/c/khanacademy

As a 501(c)(3) nonprofit organization, we would love your help!
Donate here: https://www.khanacademy.org/donate?utm_source=youtube&utm_medium=desc

Created by
Revathi Ramachandran

In this video, we step into the world of honey bees and find out why some of them don't have fathers, while everyone has grandfathers!

More free lessons & practice: https://www.khanacademy.org/sc....ience/in-in-class-12

Khan Academy is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We offer quizzes, questions, instructional videos, and articles on a range of academic subjects, including math, biology, chemistry, physics, history, economics, finance, grammar, preschool learning, and more. We provide teachers with tools and data so they can help their students develop the skills, habits, and mindsets for success in school and beyond. Khan Academy has been translated into dozens of languages, and 15 million people around the globe learn on Khan Academy every month. As a 501(c)(3) nonprofit organization, we would love your help!
Donate here: https://www.khanacademy.org/donate?utm_source=youtube&utm_medium=desc

Created by Sulagna Das

This video is about figuring out how to determine the hybridization of each element in its structure. Orbital hybridization is the concept of mixing atomic orbitals into new hybrid orbitals suitable for the pairing of electrons to form chemical bonds in valence bond theory.




To determine the hybridization of each element in a molecule, you can follow these steps:

1. Draw the Lewis structure of the molecule: The Lewis structure shows the arrangement of atoms and valence electrons around each atom.

2. Determine the number of valence electrons for each atom: This is the sum of all the valence electrons of the atoms in the molecule. You can find this information in the periodic table.

3. Count the number of electron pairs around each atom: Lone pairs and bonded electron pairs both count as one electron pair.

4. Determine the steric number of each atom: The steric number is the sum of the number of bonded atoms and the number of lone pairs around an atom.

5. Use the steric number to identify the hybridization of the atom:

- Steric number 2: The atom has two electron pairs and is sp hybridized.
- Steric number 3: The atom has three electron pairs and is sp2 hybridized.
- Steric number 4: The atom has four electron pairs and is sp3 hybridized.

6. Assign hybrid orbitals to each atom: Once you determine the hybridization, assign hybrid orbitals to each atom accordingly.

For example, in water (H2O) molecule:

1. Draw the Lewis structure of water: H-O-H.

2. Determine the number of valence electrons for each atom: Hydrogen (H) has 1 valence electron, and Oxygen (O) has 6.

3. Count the number of electron pairs around each atom: Each hydrogen has one bonded electron pair, and oxygen has two lone pairs and two bonded electron pairs.

4. Determine the steric number of each atom: The hydrogen atoms have a steric number of 1, and the oxygen atom has a steric number of 4.

5. Use the steric number to identify the hybridization: Each hydrogen is sp hybridized, and the oxygen is sp3 hybridized.

6. Assign hybrid orbitals to each atom: Each hydrogen atom uses an sp hybrid orbital, and the oxygen atom uses an sp3 hybrid orbital.

Remember, this is a simplified explanation, and the actual hybridization can get more complex in some cases. Additionally, this method applies to molecules that follow the rules of valence bond theory.

:In the first video we saw that all the things in the world are made of incredibly tiny particles called atoms. And also that there are 92 different kinds of them. Most things have more than one type of atom in them, but when we do find something containing just one kind of atom, we call it an element. A nugget of gold is an element because it's made of only gold atoms. The atoms are too small to see with our eyes, even using a good microscope, but if we could zoom in with a magnification of a billion times we could see the individual gold atoms. Each kind of atom had a shorthand way of writing it, called its symbol, using either one or two letters. The symbol for gold is Au, taken from the ancient Latin word it, aurum. The symbol Au could refer to either a single gold atom, or the element gold consisting of many gold atoms.Scientists have made a list of all the types of atoms, starting with the lightest, hydrogen, followed by the next lightest, helium. Just heavier than these are lithium and beryllium. We could give each element a number showing its place in this list. Hydrogen's number would be 1 as it is the first in the list, helium's would be 2, and so on. Here are the first 20 elements in the list, starting with the lightest, hydrogen, and going all the way to the heaviest, uranium. Since there are 92 elements in the list, uranium's number must be 92