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Paraphin [41]
4 years ago
9

The blank is the material that wave move through

Chemistry
1 answer:
miss Akunina [59]4 years ago
4 0

Waves travel through matter, so I am 99.9% sure that is the answer.

Id look through your lesson to be sure!

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The ka value for acetic acid, ch3cooh(aq), is 1.8× 10–5. calculate the ph of a 1.60 m acetic acid solution.
leonid [27]

<span>To determine the pH of the solution given, we make use of the acid equilibrium constant (Ka) given. It is the ratio of the equilibrium concentrations of the dissociated ions and the acid. The dissociation reaction of the CH3COOH acid would be as follows:

</span>CH3COOH = CH3COO- + H+<span>

The acid equilibrum constant would be expressed as follows:

Ka = [H+][</span>CH3COO-] / [CH3COOH] = 1.8× 10^–5

<span>
To determine the equilibrium concentrations we use the ICE table,
         CH3COOH             H+             </span>CH3COO<span>-
I            1.60                    0                     0
C             -x                    +x                   +x
----------------------------------------------------------------
E         1.60-x                   x                     x 

</span>1.8× 10^–5 =  [H+][CH3COO-] / [CH3COOH] <span>
1.8 x 10^-5 = [x][x] / [0.160-x] </span>

Solving for x,

x = 1.69x10^-3 = [H+] = [F-]

pH = -log [H+] = -log [1.69x10^-3] = 2.8

8 0
3 years ago
_H2SO4 + __ B(OH)3 = _ B2(SO4)3 + __ H2O
Nana76 [90]

Answer:

3H2SO4 + 2B(OH)3 -> B2(SO4)3 + 6H2O

Explanation:

3 0
4 years ago
Why are ions created in an ionic bond?
Dmitry [639]
Ionic bounds are formed due to the electrostatic attraction between oppositely charged ions in a chemical compound.
The atom that loses the electrons becomes a positively charged ion (cation), while the one that gains them becomes a negatively charged ion (anion).
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3 years ago
3. What is the picture displayed? *
Debora [2.8K]

molecule (hope this helps :))

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Advocard [28]

Answer:

hajhsajjsha

Explanation:

4 0
3 years ago
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