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Vesna [10]
2 years ago
12

A(n) __________ is all the living and nonliving things in a particular area that interact with one another.

Chemistry
2 answers:
Tems11 [23]2 years ago
6 0

Answer:

C. ecosystem

Explanation:

The answer is C.

Virty [35]2 years ago
4 0

Answer:

ecosystem

Explanation:

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How many grams of diphosphorus pentoxide result if 100.0 g of phosphorus are combined with sufficient oxygen?
gregori [183]
Answer is: 230 g.
Chemical reaction: P₄ + 5O₂ → 2P₂O₅.
m(P₄) = 100 g.
M(P₄) = 4 · 31 g/mol = 124 g/mol.
n(P₄) = m(P₄) ÷ M(P₄) = 100g ÷ 124g/mol = 0,806 mol.
From reaction: n(P₄) : n(P₂O5) = 1 : 2.
n(P₂O₅) = 1,612 mol.
m(P₂O₅) = 1,612 mol · 142g/mol = 230g.
M - molar mass.
n - amount of substance.
3 0
3 years ago
Chemical bonds release energy when they break apart, and take in energy when they form. How does this observation help explain t
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ENERGY WOULD BE RELALISED, MEANING BONDS ARE BEING BROKEN, SO IT IS AN EXOTHERMIC REACTION
6 0
2 years ago
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If a car passes a pedestrian, a change in pitch is __________.
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Given two questions:

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Write the nuclear symbol of oxygen-16?​
Nina [5.8K]

Answer:

Oxygen-16 (16o) is a stable isotope of oxygen, having 8 neutrons and 8 protons in its nucleus.

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5 0
3 years ago
The green areas on the diagram show the world's rainforests. What can you conclude about the location of rainforests?
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Answer:

Option A

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From the diagram, we can observe that all the rain forest zones occur near the equator.

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