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Annette [7]
3 years ago
6

In your own words, explain John Martin s theory about iron dumping.

Chemistry
1 answer:
AlekseyPX3 years ago
3 0
Basically the theory centers on the idea that an atom of iron dumped into the sea results in the conversion of 10,000 molecules of carbon dioxide to carbohydrates. John Martin's hypothesis is that the growth of phytoplankton is limited by the amount of iron dissolved in sea water. Lab experiments done by him then showed that indeed, adding a small amount of iron accelerated the growth of plankton.
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A certain skin lotion is a fine mixture of water and various oils. This lotion is cloudy and cannot be separated into oil and wa
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Colloid

Explanation:

A lotion of this type is a typical colloid mixture.

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  • The dispersed phase and the dispersion medium.
  • Water is the dispersion medium and oil is the dispersed phase.

They have the following properties:

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  • The particles are larger than those found in solutions.
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learn more:

Heterogeneous mixtures brainly.com/question/1446244

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3 years ago
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m_a_m_a [10]

Answer:they will out live us himans

Explanation:

7 0
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How many atoms are there in 65.89grams of lead?
Dmitry_Shevchenko [17]

Answer:

1.915e23 Atoms

Explanation:

There are 6.02214076e23 is the mass of a mol in amu. Since the amu of lead is 207.2, and there is 65.89 grams of it, you can find that it creates approximately 1.914 atoms.

5 0
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When you calculate apercent recovery you may find sometimes that it islarger than 100%. Assuming this is NOT due to errors assoc
Romashka-Z-Leto [24]

Answer:

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Explanation:

Laboratory experience has shown that the percent yield obtained from a reaction may be greater than 100% if the product obtained from the reaction contains impurities that causes its mass to be greater than it actually would be if the product was pure.

A typical impurity that may be present in a product is the solvent used. This can be removed by evaporation of the solvent or by washing the product thoroughly.

Reaction of solid products with gases may also increase the percentage yield above 100%.

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3 years ago
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