The myschool activation code is one thousand naira, click on this link myschool.ng/latest-jamb-cbt-practice-mobile-app-free-download to download the app, after setting up the app with your loggin details, click on "BUY ACTIVATION CODE" then tap on "PLACE AN ORDER" ones you see the account numbers to pay, read the instructions below carefully to know the exact payment details to send to us after making the payment, then wait for confirmation from us.
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In question 50, you said a good example of a compound that has trigonal planar shape is ammonia, ammonia has a lone pair so it's trigonal pyramidal not trigonal planar. Thank you.
Please I need help I downloaded my school app and to register am having problem with it. They are saying this user name has been taken and how much is the activation code.
After studying these videos, you should try to test yourself. You can test yourself by taking a simulated JAMB CBT exam using any of the following tools; 1. JAMB CBT Practice Mobile App; myschool.ng/latest-jamb-cbt-practice-mobile-app-free-download 2. JAMB CBT Practice Software; myschool.ng/latest-jamb-cbt-practice-software-free-download
If a reaction releases more energy than it absorbs, the reaction is exothermic and enthalpy will be negative. If a reaction absorbs or uses more energy than it releases, the reaction is endothermic, and enthalpy will be positive.
Yes, but it is easier for chlorine to accept one electron than to give out 7 electrons, hence the valency is 1. Ones it accepts an electron, the number of electron on its outer most shell becomes 8 making it stable, don't forget that chlorine is a non metal, and they ionize by accepting electron(s).
Valence has to do with the number of electron(s) an element is ready to give out or receive during a chemical reaction. Phosphorus has to valences 5 and 3.
The number of incomplete electron in outermost shell is what determines the number of electron(s), an element can give out or receive during a chemical reaction, and that is what is called valency.
The question is talking about valency not valence electron, and valency means the combining power of an element which represents the number of electron an element is willing to give out or receive during chemical reaction, in the case of halogen they will accept 1 electron in order to become stable.
Yes, but it is easier for chlorine to accept one electron than to give out 7 electrons, hence the valency is 1. Ones it accepts an electron, the number of electron on its outer most shell becomes 8 making it stable, don't forget that chlorine is a non metal, and they ionize by accepting electron(s).
According to Graham's law of diffusion, the ratio of the diffusion rates of two gases is the inverse of the square root of the ratio of their molar masses. Therefore: Rate of A / Rate of B = √(Molar mass of B / Molar mass of A) Rate of A / Rate of B = √(64 g/mol / 32 g/mol) = √2 = 1.41 So, the ratio of their diffusion rates is approximately 2:1
Thank you for writing in. The CBT mode of examinations presents different questions to different candidates at the same time. That's also why we have more than the normal number of questions, which is 40. JAMB draws questions from a pool of questions in their database. Hence the reason we emphasize that you should practice as many questions as possible.
According to Graham's law of diffusion, the ratio of the diffusion rates of two gases is the inverse of the square root of the ratio of their molar masses. Therefore: Rate of A / Rate of B = √(Molar mass of B / Molar mass of A) Rate of A / Rate of B = √(64 g/mol / 32 g/mol) = √2 = 1.41 So, the ratio of their diffusion rates is approximately 2:1
The fact that there are different transitions for each video is so amazing 🤩
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Thank you sir this was really helpful.
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good one i really enjoyed your class
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U ar good sir, great explanation brief and straight forward 🧘🏾♂️🙇🏾♂️🔥
Thank you, enjoy.
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Hi@@MyschoolNigeria
Hi, how may we be of help?
@@MyschoolNigeria how much and how to activate myschool app
The myschool activation code is one thousand naira, click on this link myschool.ng/latest-jamb-cbt-practice-mobile-app-free-download to download the app, after setting up the app with your loggin details, click on "BUY ACTIVATION CODE" then tap on "PLACE AN ORDER" ones you see the account numbers to pay, read the instructions below carefully to know the exact payment details to send to us after making the payment, then wait for confirmation from us.
Myschool! You video lessons never load on my phone even after trying for some time
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In question 50, you said a good example of a compound that has trigonal planar shape is ammonia, ammonia has a lone pair so it's trigonal pyramidal not trigonal planar.
Thank you.
You're correct, it's just a slip.
You did not correct it publicly
Please I need help I downloaded my school app and to register am having problem with it. They are saying this user name has been taken and how much is the activation code.
i think 1k
Try to use upper and lower case with mixture of letters, and numbers. The activation code is one thousand naira.
How can you get the school app
After studying these videos, you should try to test yourself. You can test yourself by taking a simulated JAMB CBT exam using any of the following tools;
1. JAMB CBT Practice Mobile App; myschool.ng/latest-jamb-cbt-practice-mobile-app-free-download
2. JAMB CBT Practice Software; myschool.ng/latest-jamb-cbt-practice-software-free-download
Please sir we need your explanation about exothermic and endothermic reaction how can we recognise exothermic and endothermic reaction
If a reaction releases more energy than it absorbs, the reaction is exothermic and enthalpy will be negative.
If a reaction absorbs or uses more energy than it releases, the reaction is endothermic, and enthalpy will be positive.
omo thNK YOU
You're welcome!
Question 55 I think the question is asking for valence of an atom of chlorine which is 7.... I don't understand how you chose 1
Yes, but it is easier for chlorine to accept one electron than to give out 7 electrons, hence the valency is 1. Ones it accepts an electron, the number of electron on its outer most shell becomes 8 making it stable, don't forget that chlorine is a non metal, and they ionize by accepting electron(s).
@@MyschoolNigeria does it mean that the valence of phosphorus is 2 ..I still not understand
Valence has to do with the number of electron(s) an element is ready to give out or receive during a chemical reaction. Phosphorus has to valences 5 and 3.
@@MyschoolNigeria it is a mistake, What I mean is sulphur... I think valence mean the number of incomplete electron in outermost shell
The number of incomplete electron in outermost shell is what determines the number of electron(s), an element can give out or receive during a chemical reaction, and that is what is called valency.
This valence electron of chlorine is confusing because group 1 element have 1 how come halogen have 1 as well
The question is talking about valency not valence electron, and valency means the combining power of an element which represents the number of electron an element is willing to give out or receive during chemical reaction, in the case of halogen they will accept 1 electron in order to become stable.
👏
Please is valency not supposed to be the number of elements in the outermost shell, which is 7
Yes, but it is easier for chlorine to accept one electron than to give out 7 electrons, hence the valency is 1. Ones it accepts an electron, the number of electron on its outer most shell becomes 8 making it stable, don't forget that chlorine is a non metal, and they ionize by accepting electron(s).
Thanks 🎉
But there are very few calculations
Stay tuned as we keep uploading more videos.
Question 45,the ratio is 1:2 not 2;1
According to Graham's law of diffusion, the ratio of the diffusion rates of two gases is the inverse of the square root of the ratio of their molar masses. Therefore:
Rate of A / Rate of B = √(Molar mass of B / Molar mass of A)
Rate of A / Rate of B = √(64 g/mol / 32 g/mol) = √2 = 1.41
So, the ratio of their diffusion rates is approximately 2:1
I thought the question ends at 40
Thank you for writing in.
The CBT mode of examinations presents different questions to different candidates at the same time. That's also why we have more than the normal number of questions, which is 40. JAMB draws questions from a pool of questions in their database. Hence the reason we emphasize that you should practice as many questions as possible.
Thanks alot sir
All the best.
Thanks
Welcome.
Question 45,the ratio is 1:2 not 2;1
According to Graham's law of diffusion, the ratio of the diffusion rates of two gases is the inverse of the square root of the ratio of their molar masses. Therefore:
Rate of A / Rate of B = √(Molar mass of B / Molar mass of A)
Rate of A / Rate of B = √(64 g/mol / 32 g/mol) = √2 = 1.41
So, the ratio of their diffusion rates is approximately 2:1
Thank you sir
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Thank you sir 😊
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❤ thank you sir
Welcome.
Thank you sir😊
All the best