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3)the product of two number is= 2197

one of the number is= 13

other number =2197÷13

so,other number is 169

Explanation:

Hey sis, please report this answer.

Actually there is a query.

You answered one of the question, longest river in Amazon.. answer is Nile?

But if it is so, then it should be located in South America Right? Because most of the part is in Brazil ..

But in Google it is showing Africa? ( I think it is right)

I think the correct answer is Egypt, I remembered that in the tests, I showed it in South America, and I know very well that Nile is in Egypt, while Amazon river is longer than Nile.

Please rectify the mistake...The correct answer will be Amazon river.

Here is your answer mate..

Step-by-step explanation:

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plzz refer to the attachment above

the full form of it is that as soon as possible

ihope it is helpful to you

•external diameter = 14 cm

•Radius of a solid sphere is

6.073 cm

•external radius = R = 7 cm

•internal radius = external radius -

thickness

•internal radius = r = 5

•Now , Volume of material in hollow

sphere = 4π( R³-r³)/3

= 4π(7³-5³)/3

= 4π(349-125)/3

= 4π(224)/3

•Now let the required sphere has

radius = R'

•Volume of required sphere =

4π(R'³)/3

•According to question

•Volume of required sphere = •Volume of material in hollow

sphere

• 4π(R'³)/3 = 4π(224)/3

• R'³ = 224

• R' = 6.073 cm

answer:

wh? what ails you?

answer:

to reach the second ionization potential we remove a second electron from an already ionized element

m+1⟶m+2

here are the electron configurations for the singly charged ions in your question, along with their second ionization potentials (kj/mol)

li+1be+1b+11s2 1s2 2s1 1s2 2s2 7297 1757 2426

we see that both li+1 and b+1 have completely filled shells, the stable "inert gas" configuration. we would expect it to be difficult to remove one electron from these two ions and destroy stable configuration. further, we would expect removal of one electron from li+1 to be more difficult than from b+1 because in the former case we are removing a 1s electron is closer to the nucleus than the 2s electron in the case of b+1. on the other hand, if be+1 loses one electron it will have a 1s2 electron configuration and a stable "inert gas" configuration. should make it much easier to remove one electron from be+1 than from the other two ions.