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nadezda [96]
3 years ago
6

Who else had to do a final model for the rust unit ​

Chemistry
1 answer:
ArbitrLikvidat [17]3 years ago
4 0
Which one? Are u saying.
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Which of the following uses mechanical energy to function?
elena55 [62]
C is the answer i believe
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Which of the statements below are TRUE, knowing what we know about forces and motion?
timurjin [86]

Answer:

b

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if there is a net force acting on an object, the object will have an acceleration and the objects velocity will change

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How does the chemistry of life relate to cellular respiration
storchak [24]

Answer:

¿Cuál es la reaccion quimica de la respiracion celular?

La respiración celular es una reacción exergónica, donde parte de la energía contenida en las moléculas de alimento es utilizada por la célula para sintetizar ATP. ... Aproximadamente el 40% de la energía libre emitida por la oxidación de la glucosa se conserva en forma de ATP.

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3 years ago
Calculate the silver ion concentration in a saturated solution of silver(I) sulfate (K sp = 1.4 × 10 –5). 1.5 × 10–2 M 1.4 × 10–
spin [16.1K]

Answer:

3.0x10⁻²M

Explanation:

Silver sulfate, Ag₂SO₄, has a product constant solubility equilbrium of:

Ag₂SO₄(s) ⇄ 2Ag⁺ + SO₄²⁻

When an excess of silver sulfate is added, some Ag₂SO₄ will react producing Ag⁺ and SO₄²⁻ until reach the equilbrium determined for the formula:

ksp = 1.4x10⁻⁵ = [Ag⁺]² [SO₄²⁻]

Assuming the Ag₂SO₄ that react until reach equilibrium is X, we can replace in Ksp expression:

1.4x10⁻⁵ = [Ag⁺]² [SO₄²⁻]

1.4x10⁻⁵ = [2X]² [X]

1.4x10⁻⁵ = 4X³

3.5x10⁻⁶ = X³

0.015 = X

As [Ag⁺] is 2X:

[Ag⁺] = 0.030 = 3.0x10⁻²M

The answer is:

<h3>3.0x10⁻²M</h3>
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3 years ago
What instrument, along with a telescope, allows study of the wavelengths of visible light coming from a star?
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