Fertilizer runoff has a negative impact on aquatic ecosystems because _______.

2 answers:

7 0

The answer is a. it causes plants and algae to grow quickly, suffocating organisms in the water. The rapid growth of organisms due to fertilizer runoff leads to a process called eutrophication. When the vegetation dies, the process of decomposition leads to the formation of excessive amounts of carbon dioxide, which in turn suffocates aquatic animals.

swat323 years ago

3 0

A .

. it causes a plants and alged to grow quicklly, suffocating organisums in tkhe water

just took the test

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For each equation given below, enter the number in the space provided to correctly answer the question.

victus00 [196]

Answer:

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Explanation:

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3 years ago

If I add 2.75 g of CaO to 155 mL of distilled water, what will be the concentration of the solution be?

IRINA_888 [86]

M = m/L
moles of CaO = 2.75g / molar mass
2.75g/ 56.08g = 0.049moles CaO
155mL / 1000 = 0.155 L
M= 0.049moles/0.155L
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2 years ago

Identify the acids and the bases in the chemical equation

agasfer [191]

<h3>Answer;</h3>

Acids; HCl and HC5H5N+

Bases; C5H5N and Cl-

<h3>Explanation;</h3>

According to Bronsted-Lowry Theory an acid is a proton or hydrogen ion donor while a base is a proton or a hydrogen ion acceptor.
In this case, both HCl and HC5H5N+ are acids as they are donors of hydrogen ions. HCl is an acid to the forward reaction while HC5H5N+ is a acid to the reverse reaction.
On the other hand, C5H5N and Cl- are bases, they are acceptors of hydrogen ions. Cl- is a base in the reverse reaction while C5H5N is a base in the forward reaction.

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3 years ago

Determine the reducing agent in the following reaction. Explain your answer. 2 Li(s) + Fe(C2H3O2)2(aq) → 2 LiC2H3O2(aq) + Fe(s)

Brilliant_brown [7]

The reducing agent in the reaction 2Li(s) + Fe(CH₃COO)₂(aq) → 2LiCH₃COO(aq) + Fe(s) is lithium (Li).

The general reaction is:

2Li(s) + Fe(CH₃COO)₂(aq) → 2LiCH₃COO(aq) + Fe(s) (1)

We can write the above reaction in two reactions, one for oxidation and the other for reduction:

Oxidation reaction

Li⁰(s) → Li⁺(aq) + e⁻ (2)

Reduction reaction

Fe²⁺(aq) + 2e⁻ → Fe⁰(s) (3)

We can see that Li⁰ is oxidizing to Li⁺ (by losing one electron) in the lithium acetate (reaction 2) and that Fe²⁺ in iron(II) acetate is reducing to Fe⁰ (by gaining two electrons) (reaction 3).

We must remember that the reducing agent is the one that will be oxidized by reducing another element and that the oxidizing agent is the one that will be reduced by oxidizing another species.

In reaction (1), the reducing agent is Li (it is oxidizing to Li⁺), and the oxidizing agent is Fe(CH₃COO)₂ (it is reducing to Fe⁰).

Therefore, the reducing agent in reaction (1) is lithium (Li).

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