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mario62 [17]
3 years ago
9

Does Kinetic energy depend only on an object’s speed and velocity?

Chemistry
2 answers:
SSSSS [86.1K]3 years ago
6 0
Yes . kinetic energy mainly focuses on movement .
BaLLatris [955]3 years ago
4 0

yes         .. . . . .. . . .. ....... . ..dlnv3r;'mw,c    kc;oqc,

xkdnnd                                                                                                

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Calculate the concentration of OH- in a solution that contains 3.9 x 10-4 M H3O+ at 25°C. Identify the solution as acidic, basic
aalyn [17]

Answer:

[OH⁻] = 2,6x10⁻¹¹

Acidic

Explanation:

The kw in water is:

2 H₂O(l) ⇄ OH⁻(aq) + H₃O⁺(aq)

kw = [OH⁻] [H₃O⁺] = 1,00x10⁻¹⁴

If concentracion of H₃O⁺ is 3,9x10⁻⁴M:

[OH⁻] [3,9x10⁻⁴M] = 1,00x10⁻¹⁴

<em>[OH⁻] = 2,6x10⁻¹¹</em>

pH is defined as - log[H₃O⁺]. If pH>7,0 the solution is basic, if pH<7,0 solution is acidic, if pH=7,0 solution is neutral.

In this problem,

pH = - log [3,9x10⁻⁴M] = <em>3,4</em>

As pH is < 7.0, the solution is <em>acidic</em>

<em></em>

I hope it helps!

8 0
3 years ago
Have any of you guys ever got suspended because you made a stink bomb in science class?
AleksAgata [21]

Answer:

No :s

Explanation:

3 0
3 years ago
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GenaCL600 [577]

Answer:

remaining still during the night.

Explanation:

3 0
2 years ago
Enter the atomic symbol, including mass number and atomic number, for iodine-130.
WINSTONCH [101]

<u>Answer:</u> The atomic symbol of the given element is _{53}^{130}\textrm{I}

<u>Explanation:</u>

The general isotopic representation of an element is given as:  _Z^A\textrm{X}

where,

Z represents the atomic number of the element

A represents the mass number of the element

X represents the symbol of an element

For the given isotope: 130-iodine

Mass number = 130

Atomic number = 53

Hence, the atomic symbol of the given element is _{53}^{130}\textrm{I}

6 0
3 years ago
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