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Mamont248 [21]
3 years ago
9

Por que el plastico flota en el agua?​

Chemistry
1 answer:
Serggg [28]3 years ago
4 0

Answer:

El plástico que flota en el mar libera compuestos orgánicos que estimulan el crecimiento de las bacterias marinas. Científicos del CSIC revelan que estos residuos liberan hasta 23.600 toneladas métricas de carbono orgánico disuelto en el agua, que en su mayor parte es rápidamente consumido por las bacterias.

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I hope this helped you!
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What is the difference between a theory and a scientific law?
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A negative △H means an exothermic reaction.<br><br> True<br> False
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3 years ago
How many moles of aluminum oxide (Al2O3) can be produced from 12.8 moles of oxygen gas (02)
zhannawk [14.2K]

Answer:

Theoretical Yield

Percent yield

Example stoichiometry problem

How much oxygen can be prepared from 12.25 g KClO3 . (Use molar mass KClO3 = 122.5 g.)

Most stoichiometry problems can be solved using the following steps.

Step 1.

Write and balance the equation for the decomposition of KClO3 with heat (∆). 2KClO3 + ∆ → 2KCl + 3O2

Step 2.

Convert what you have (in this case g KClO3) to moles.

# moles = grams/molar mass = 12.25 g /122.5 = 0.100 mole KClO3.

Step 3.

Using the coefficients in the balanced equation, convert moles of what you have (moles KClO3) to moles of what you want (in this case moles oxygen).

0.100 mol KClO3 x (3 moles O2/2 moles KClO3) = 0.100 x (3/2) = 0.150 mole O2.

Step 4.

Convert moles from step 3 to grams.

moles x molar mass = grams

0.150 mole O2 x (32.0 g O2/mole O2) = 4.80 g O2 produced from 12.25 g KClO3. This is the theoretical yield. If the ACTUAL yield is 4.20 grams, calculate percent yield. Percent yield = (actual yield/theoretical yield) x 100 = (4.20/4.80) x 100 = 87.5% yield

NOTE: In step 1, moles can be obtained other ways; in step 4 moles can be converted to other units.

a. For solutions, M x L = moles (or mL x M = millimoles).

b. For gases, L/22.4 = moles

4 0
3 years ago
PLEASE HELP ASAP !!!
Alchen [17]

Answer: Naprox 350 is the anwser

Explanation: because to fourmals mixed makes naprox know as gr27

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