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Afina-wow [57]
3 years ago
11

Good Morning This is a question I need help on pleas help

Chemistry
1 answer:
elena55 [62]3 years ago
8 0

Answer:

S.

Explanation:

North and South must always be opposite of each other.

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What is the hydrogen ion (H+) concentration of a solution of pH 8?
fgiga [73]

Answer:

10−8 M.

Explanation:

In this problem we are given pH and asked to solve for the hydrogen ion concentration. Using the equation, pH = − log [H+] , we can solve for [H+] as,

− pH = log [H+] ,

[H+] = 10−pH,

by exponentiating both sides with base 10 to "undo" the common logarithm. The hydrogen ion concentration of blood with pH 7.4 is,

[H+] = 10−7.4 ≈ 0.0000040 = 4.0 × In this problem we are given pH and asked to solve for the hydrogen ion concentration. Using the equation, pH = − log [H+] , we can solve for [H+] as,

− pH = log [H+] ,

[H+] = 10−pH,

by exponentiating both sides with base 10 to "undo" the common logarithm. The hydrogen ion concentration of blood with pH 7.4 is,

[H+] = 10−7.4 ≈ 0.0000040 = 4.0 × 10−8 M.

3 0
3 years ago
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What are eight elements named after towns
maxonik [38]
1. Berkelium(Berkeley, CA) 2. Dubnium(Dubna, Russia) 3. Darmstaditum (Darmstadt, Germany) 4. Erbium(Ytterby, Sweden) 5. Strontium(Strontian, Scotland) 6. Terbium(Ytterby, Sweden) 7. Yttebium(Ytterby, Sweden) 8. Yttrium(Ytterby, Sweden)
5 0
3 years ago
What is 5.0553 x 10^-4 in standard notation?
Talja [164]

Answer:

0.00050553

Explanation:

when the power of ten is negative, move the decimal to the left

hope this helped!

6 0
3 years ago
Explain the following phenomena. why Fluorine has lower electron affinity than chlorine​
Radda [10]

Electron affinity for fluorine is than chlorine most likely , due to the electron repulsion that occur between the electron where n= 2 . the elements in the second period have such small electron clouds that electron repulsion is greater than that of the rest of the family.

4 0
3 years ago
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19) Which set of coefficients correctly balances this chemical equation?*
Bas_tet [7]

Answer:

6,1,2

Explanation:

_Ag + _N2 => _Ag3N

LHS RHS

Ag=1×6=3 Ag=3×2=6(Balanced)

N=2×1=2 N=1×2=2(Balanced)

coefficient=6,1,2

4 0
3 years ago
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