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Vladimir79 [104]
2 years ago
7

I need help with this :(

Chemistry
1 answer:
olga2289 [7]2 years ago
6 0

Answer: 79.6 g

mwof 02 is 16 and mw of H2O is 18.

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A substance that prevents the flow of electric current is a(n) .
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An Insulator.

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Will has an aquarium with water, plants, and fish that eat the plants. It is sealed so no material can get in or out, and has gl
Aleks04 [339]

Answer:

The aquarium is covered and not in sunlight

Diminishing

Explanation:

The sun is the ultimate source of energy for all life and activities on earth. The aquarium is no exception.

Green plants manufactures food in the process of photosynthesis by combining carbon dioxide and water in the presence of sunlight.

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Here is a feeding relationship between plants and fish in a pond. The producer here is the plants. The consumer is the fish.

Using carbon dioxide and water, plants manufactures food. When the amount of carbon starts decreasing it shows that the aquarium is covered.

The source of dissolved carbon dioxide in water is the fish which gives off this gas as it respires. When the fish ceases to respire, it does not have enough food and might have died thereby decreasing carbon dioxide levels.

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The energy levels in both plant and fish will begin to reduce because the plant is unable to produce food which the fish depends on.

This will furnish a rapid decline in the energy available in these living organisms since the plants are not able to produce.

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3 years ago
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Which element has the lowest first ionization energy? (F), (Li), (Fr), (Rb)?
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The elements in the periodic table are arranged in order of increasing atomic number.

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