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3 years ago

Write the expression for the equilibrium constant Keq for the reaction below:

Chemistry

1 answer:

OverLord2011 [107]3 years ago

4 0

Answer:

THE ANSWER IS NOT A!! JUST TOOK THE TEST THE ANSWER IS NOT A. THE TEST DID NOT GIVE ME THE CORRECT ANSWER.

Explanation:

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I NEED RIGHT NOW OR I GET AN F!!!!! HELP!!!!!

Oksi-84 [34.3K]

Answer:

boundary interactions: areas where plates move away from each other forming mid-ocean ridges or rift valleys.

divergent boundaries: this happens when 2 tectonic plates move away from each other. along these boundaries earthquakes and magma are common as they are rise from the mantle to the sruface making new oceanic crust.

convergent boundaries: this is an area on earth where 2 or more lithospheric plates collide. they will slide under one another creating a subduction.

transform boundaries: transform boundary is a fault along a plate boundary where the motion is predominantly horizontal. It ends abruptly where it connects to another plate boundary, either another transform, a spreading ridge, or a subduction zone.

Explanation:

lithosperic means the solid outer part of the earth.

hope this helps and good luck! :) <3

4 0

3 years ago

Which image represents the step in mitosis when chromosomes condense and spindle fibers form?

Tatiana [17]

Omg im learning this too . i think it’s the third picture ? bc that’s prophase

3 0

3 years ago

2. 1.5 moles of AgNO3 reacts with 0.5 mole of Mg3P2. Calculate the moles of excess

kicyunya [14]

Answer:

No of Moles in excess at the end of the reaction is 0.25 moles

Explanation:

AgNO3 + Mg3P2 → Ag3P + Mg(NO3)2

Balancing the equation we get

6AgNO3 + Mg3P2 → 2Ag3P + 3Mg(NO3)2

6 moles of AgNO3 needs 1 mole of Mg3P2

using unitary method

AgNO3 = $\frac{1}{6}*Mg3P2$

1.5 AgNO3 = $\frac{1}{6}*1.5$

= 1/4 = 0.25moles of Mg3P2

So 1.5 Moles of AgNO3 requires 0.25Mg3P2 for complete reaction but we have 0.5Moles of Mg3P2 available Therefore Mg3P2 is in excess

No of Moles in excess at the end of the reaction = 0.5 - 0.25 = 0.25moles

5 0

3 years ago

Three mixtures were prepared from three very narrow molar mass distribution polystyrene samples with molar masses of 10,000, 30,

8_murik_8 [283]

Answer:

(a). 46,666.7 g/mol; 78,571.4 g/mol

(b). 86950g/mol; 46,666.7 g/mol.

(c). 86950g/mol; 43,333.33 g/mol

Explanation:

So, we are given the molar masses for the three samples as: 10,000, 30,000 and 100,000 g mol−1.

Thus, the equal number of molecule in each sample = ( 10,000 + 30,000 + 100,000 ) / 3 = 46,666.7 g/mol.

The average molar mass = [ ( 10,000)^2 + (30,000)^2 + 100,000)^2] ÷ 10,000 + 30,000 + 100,000 = 78,571. 4 g/mol.

(b). The equal masses of each sample = 3/[ ( 1/ 10,000) + (1/30,000 ) + (1/100,000) ] = 20930.23 g/mol.

Average molar mass = ( 10,000 + 30,000 + 100,000 ) / 3 = 46,666.7 g/mol.

(c). Equal masses of the two samples = (0.145 × 10,000) + (0.855 × 100,000)/ 0.145 + 0.855 = 86950g/mol.

The weight average molar mass = 1.7 + 10,000 + 100,000/ 1.7 + 1 = 43,333.33 g/mol.

6 0

3 years ago

A cell has a single line of chromosomes. What is the phase?

castortr0y [4]

Answer: What occurs during telophase? A cell has a single line of chromosomes.

Explanation:

4 0

4 years ago