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Svetlanka [38]
3 years ago
5

Please help, thank you! Match each organism with the correct description.

Chemistry
1 answer:
hodyreva [135]3 years ago
5 0

Answer:

1. A

2. D

3. E

4. B

5. C

Explanation:

1. Plants are known as producers since they produce energy for themselves through photosynthesis.

2. The rabbit is a primary consumer since it’s herbivore and only feeds on producers for energy.

3. The tiger is a carnivore, and preys on other consumers for energy.

4. A human is an omnivore since it can gain energy from both producers and consumers.

5. Bacteria are know as decomposers since such category of organisms break down other organisms to gain energy.

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lubasha [3.4K]

Answer:

A) It is a practical source of energy on Earth.

Explanation:

The reaction shown is a nuclear fusion reaction. Nuclear fusion refers to the combination of two light nuclei to produce a heavier nuclei with a release of tremendous amount of energy. The energy released in a fusion reaction is so great and it is often difficult to achieve fusion reactions in a controlled nuclear reactor.

Fusion reactions just like the one shown is the source of energy on earth. The energy reaching the earth is obtained by fusion reactions in outer space.

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Copper II oxide is a compound.
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3 years ago
An oxide of nitrogen is 25.9% N by mass, has a molar mass of 108 g/mol, and contains no nitrogen-nitrogen or oxygen-oxygen bonds
Sonja [21]

Answer:

The compound is N2O4

Explanation:

We have certain important pieces of information about the compound;

1) it is an oxide (a binary compound of nitrogen and oxygen)

2) there are no N-N bonds present

3) there are no O-O bonds present

Since it contains only nitrogen and oxygen then nitrogen accounts for 25.9% of the molecule by mass then oxygen should account for (100-25.9) = 74.1% oxygen

Relative atomic mass of oxygen = 16

Relative atomic mass of nitrogen = 14

We now deduce the empirical formula

Nitrogen. Oxygen

25.9/14. 74.1/16

1.85/1.85. 4.6/1.85 (divide through by the lowest ratio)

1 2

Empirical formula is NO2

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(NO2)n = 108

(14+2(16))n= 108

46n=108

n= 108/46

n= 2

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