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HACTEHA [7]
3 years ago
5

The five boxes below represent a geologic cross-section with five layers that represent the rocks as they would from when earth'

s atmosphere was developing (A is on top and E is on the bottom). Label the cross section with the appropriate rock from the word bank below. Then, explain your answer in relation to the history of the earth's atmosphere.
Chemistry
1 answer:
quester [9]3 years ago
7 0

Answer:

A Limestone Layers

B Banded Iron formations

C Metaphoric rocks with fine grains  

D Red Beds

E Chert Layers

Explanation:

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Phosgene, a poisonous gas, when heated will decompose into carbon monoxide and chlorine in a reversible reaction: COCl2 (g) <
Advocard [28]

Answer:

8.08 × 10⁻⁴

Explanation:

Let's consider the following reaction.

COCl₂(g) ⇄ CO (g) + Cl₂(g)

The initial concentration of phosgene is:

M = 2.00 mol / 1.00 L = 2.00 M

We can find the final concentrations using an ICE chart.

     COCl₂(g) ⇄ CO (g) + Cl₂(g)

I       2.00            0            0

C        -x             +x           +x

E    2.00 -x          x             x

The equilibrium concentration of Cl₂, x, is 0.0398 mol / 1.00 L = 0.0398 M.

The concentrations at equilibrium are:

[COCl₂] = 2.00 -x = 1.96 M

[CO] = [Cl₂] = 0.0398 M

The equilibrium constant (Keq) is:

Keq = [CO].[Cl₂]/[COCl₂]

Keq = (0.0398)²/1.96

Keq = 8.08 × 10⁻⁴

4 0
3 years ago
Which of the following is one way creativity can help scientists?
postnew [5]

Answer:

One way creativity is helpful to scientists is when they need to come up with a experiment or cure for something their imaginastion is very helpful. The reason for that is with creativity they could get answers much quicker!

Explanation:

7 0
3 years ago
Read 2 more answers
If you are administering an insulin dose of 90.0 mg from a bottle at a concentration of 10.0 mg/mL,
Fiesta28 [93]

Answer:

9 mL.

Explanation:

Dosage of insulin is 90 mg

The concentration of insulin is 10 mg/mL

We need to find how many milliliters of the solution do you need to give the patient. It can be calculated as follows :

x=\dfrac{90\ \text{mg}}{10\dfrac{\text{mg}}{\text{mL}}}\\\\x=\dfrac{9}{1}\ \text{mL}

So, 9 mL of the solution is to be given to the patient.

4 0
2 years ago
Help<br> Me with da joint <br> Freshman shi got me geekin‍♂️
LenKa [72]
Keep trying you will get if you keep trying ok
4 0
3 years ago
Help 20 points !!!!!!!!!!!!!!!!!!!!!!!!!!!! plz do all no scammers
sattari [20]
14 - 2nd one
15 - I do not know
16 - also do not know
Sorry
4 0
3 years ago
Read 2 more answers
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