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ddd [48]
3 years ago
12

CAN SOMEONE PLEASE CHECK MY ANSER PLASE

Chemistry
2 answers:
Naya [18.7K]3 years ago
8 0
<span>F they attract
F
F (Schroegener is the cloud)
T




</span>
<span>the uncertainty principle states that the position and velocity cannot both be measured,exactly, at the same time (actually pairs of position, energy and time)
uncertainty principle derives from the measurement problem, the intimate connection between the wave and particle nature of quantum objects
the change in a velocity of a particle becomes more ill defined as the wave function is confined to a smaller region
the wave nature to particles means a particle is a wave packet, the composite of many waves
many waves = many momentums, observation makes one momentum out of many
exact knowledge of complementarity pairs (position, energy, time) is impossible
complementarity also means that different experiments yield different results (e.g. the two slit experiment)
therefore, a single reality can not be applied at the quantum level
the mathematical form of the uncertainty principle relates complementary to Planck's constant
knowledge is not unlimited, built-in indeterminacy exists, but only in the microscopic world, all collapses to determinism in the macroscopic world



True



Pictures:

pic.1) true

pic 2) I got no idea









</span>
Leokris [45]3 years ago
6 0
1.True
2.False
3.B
4.A
5.True
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If you have 120. mL of a 0.100 M TES buffer at pH 7.55 and you add 3.00 mL of 1.00 M HCl, what will be the new pH? (The pKa of T
Simora [160]

Answer:

The new pH after adding HCl is 7.07

Explanation:

The formula for calculating pH of a buffer is

pH = pKa + log([Conjugate base]/[Acid])

<u>Before adding HCl,</u>

         7.55 = 7.55 + log([Conjugate base]/[Acid])

⇔      log([Conjugate base]/[Acid])  = 0

⇔     [Conjugate base] = [Acid] = 1/2 x 0.100 = 0.05 M

⇒ Mole of Conjugate base = Mole of Acid = 0.05 M x 0.12 mL = 0.006 mol

<u>After adding HCl (3.00 mL, 1.00 M)</u>

⇒ Mole of HCl = 0.003 x 1 = 0.003 mol)

New volume solution is 120 m L+ 3 mL = 123 mL

HCl is a strong acid, it will convert the conjugate base to acid form, or we can express

Mole of new Conjugate base = 0.006 - 0.003 = 0.003 mol

                ⇒ Concentration = 0.003/0.123 M

Mole of new Acid form = 0.006 + 0.003 = 0.009 mol

                ⇒ Concentration = 0.009/0.123 M

Use the formula

pH = pKa + log([Conjugate base]/[Acid])

    = 7.55 + log(0.003 / 0.009) = 7.07

8 0
3 years ago
Calculate the mass of a 0.297-mL sample of a liquid with a density of 0.930 g/mL.
tekilochka [14]

Answer: 0.27621 g

Explanation:

0.297 ml *0.930 g/ml=0.27621 g

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2 years ago
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Svetach [21]

Answer:

Carbohydrates,Monosaccharides,and disaccharides

Explanation: I'm good at science

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3 years ago
Question:
Nikolay [14]

Answer:

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please give thanks, hit the heart button! :)

5 0
3 years ago
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