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3 years ago

Why Xe have electronegativity?

Chemistry

1 answer:

Elza [17]3 years ago

5 0

Answer:

Unlike other noble gases, which are highly nonreactive, Kr and Xe have non-zero values of Electronegativity (3.00 and 2.60, respectively) because they do form compounds: indeed, the electronegativity is a fundamental property of atoms that defines how strong their pull on shared electrons is.

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How does ice float on water?<br><br> Why does solid ice float on liquid water?

kifflom [539]

Answer:

Because there is trapped air inside the cube of ice

Explanation:

when water freezes it has water molecules and air molecules and as it freezes they move slower and slower until it freezes and they become stuck

4 0

3 years ago

Balance and find out the coefficients of reactions and products

kolezko [41]

Answer:

2, 1, 1, 4.

Explanation:

Hello there!

In this case, for the given chemical reaction:

$H_2SO_4+Pb(OH)_4\rightarrow Pb(SO_4)_2+H_2O\\$

We can see how there is one SO4 on the left and two on the right, thus, we add a 2 in front of H2SO4:

$2H_2SO_4+Pb(OH)_4\rightarrow Pb(SO_4)_2+H_2O\\$

Next, since there are 8 atoms of hydrogen on the left and two on the right, we add a 4 in front of H2O to obtain:

$2H_2SO_4+Pb(OH)_4\rightarrow Pb(SO_4)_2+4H_2O\\$

Which is now balanced so the coefficients 2, 1, 1, 4.

Best regards!

6 0

2 years ago

Based on the Lewis/electron dot representation

blsea [12.9K]

Answer:

A. 1:3

Explanation:

If we look at the ions shown in the image attached to the question, we will notice that we have aluminum (Al^3+), a trivalent ion combining with the iodide ion (I^-).

Aluminum can easily give out its three outermost electrons to three atoms of iodine. If aluminum gives out its three electrons, it achieves the stable octet structure. Iodine atoms have seven electrons in their outermost shell. They only need one more electrons to complete their octet. This one electron can be gotten by the combination of three iodine atoms with one atom of aluminum. One electron each is transferred from the aluminum atom to each iodine atom to form AlI3 with a ratio of 1:3.

7 0

3 years ago

How many moles of NH3 can you make from 6.20 moles of N2?

german

4 I think

$ hope it welp

4 0

3 years ago

Read 2 more answers

Help me out please!!

malfutka [58]

Answer: $6.48*10^{-2}$

Explanation:

alright, dawg, lets get this bread. CHEMISTRY? OH YEAH I LOVE CHEMISTRY.

what is a mol? do you know who avogadro is? sounds like avocado. free shavocado. ok so you MUST REMEMBER THIS NUMBER PLEASE.

please remember this number and commit it to your memory: avogadros number

$6.02 * 10^{23}$

this is how much a mole is. you know how a pair is 2 and a dozen is 12? ok so a mole is $6.02 * 10^{23}$ it is confusing at first but hopefully this helps you to understand.

now that we understand this..... lets perform this calculation with a calculator

$(3.90 * 10^{22}) / (6.02 * 10^{23})$

notice i divide the question by the avogadros number to find out how many moles are in the number. ok but listen... it gets into a tough area here... because HOW ARE WE TO DIVIDE SUCH A HUMONGOUS NUMBER BY ANOTHER HUMONGOUS NUMBER?!?!?

its easy, its cake, just listen this is how you do it. only focus on the numbers NOT the 10 exponential ones. so just 3.90 and 6.02 ok? lets divide these two numbers 3.90 / 6.02 and we get 0.6478... how interesting... ok now lets deal with the exponents of 10. notice that we are DIVIDING these numbers so think of it as subtracting the exponents of ten..... 22 minus 23 equals -1

so we have $0.6478 * 10^{-1}$

now this negative 1 thing is annoying so lets just make it to the power of 0

$0.06478 * 10^{0}$

and anything to the power of 0 just becomes 1.

0.06478

so this is our answer but keep in mind we need 3 sig figs. if we round then we get 0.0648

put this into scientific notation we get $6.48*10^{-2}$

5 0

3 years ago

Why Xe have electronegativity?​

Why Xe have electronegativity?