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Hitman42 [59]
2 years ago
9

A phytoplankton is continually exposed to an oil-soluble chemical. Over time, the concentration of the chemical within the phyto

plankton increases. This is an example of
Chemistry
1 answer:
Elis [28]2 years ago
3 0

The given statement is example of the bioaccumulation.

What is phytoplanktons?

Phytoplankton, a flora of freely floating, often minute organisms that drift with water currents.

Bioaccumulation is the accumulation of contaminants by species in concentrations that are orders of magnitude higher than in the surrounding environment.

Contuining contamination of chemical leads to bioaccumulation in phytoplanktons population.

Learn more about bioaccumulation here:

brainly.com/question/131305

#SPJ4

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How many moles of Fluorine (F2) are<br><br> needed to completely react 8.0<br><br> moles of NF3?
Anna [14]

Answer:

12 moles of F₂

Explanation:

We'll begin by writing the balanced equation for the reaction. This is illustrated below:

N₂ + 3F₂ —> 2NF₃

From the balanced equation above,

3 moles of F₂ reacted to produce 2 moles of NF₃.

Finally, we shall determine the number of mole of F₂ needed to produce 8 moles of NF₃. This can be obtained as illustrated below:

From the balanced equation above,

3 moles of F₂ reacted to produce 2 moles of NF₃.

Therefore, Xmol of F₂ will react to produce 8 moles of NF₃ i.e

Xmol of F₂ = (3 × 8)/2

Xmol of F₂ = 12 moles

Thus, 12 moles of F₂ is needed for the reaction.

8 0
2 years ago
What is the difference between a particle and an atom?
Step2247 [10]

Answer:

an atom is the basic unit of a chemical element.

a particle is a minute portion of matter.

4 0
3 years ago
Can you imagine a situation in which the reserve of a fuel might be increased?
Kamila [148]
The reserve of a fossil fuel might be increased if mining or extraction techniques improve so that more of fuel can be extracted for  a profit 
6 0
3 years ago
Read 2 more answers
Dolomite is a mixed carbonate of calcium and magnesium that decomposes to CO2 and the metal oxides MgO and CaO upon heating. Whe
kirill [66]

Answer:

47%

Explanation:

MgCO₃ (s) → MgO (s) + CO₂ (g)

CaCO₃ (s) → CaO (s) + CO₂ (g)

_______________________

MgCO₃ (s) + CaCO₃ (s) → MgO (s) + CaO (s) + 2CO₂ (g)

MgO: 40.3044 g/mol

MgCO₃: 84.3139 g/mol

CaO:56.0774 g/mol

CaCO₃: 100.0869 g/mol

CO₂: 44.01 g/mol

15.42 g is the total mass of dolomite.

7.85 g is the sum of MgO and CaO produced.

This means that 7.57 g of CO₂ were produced.

44.01 g CO₂_____ 1 mol

7.57 g CO₂ _____  x

x = 0.172 mol CO₂

Considering the global reaction, we had 0.172/2 = 0.086 mol of MgCO₃ in the original sample.

1 mol MgCO₃ _______ 84.3139 g

0.086 mol MgCO₃ ___ y

y = 7.25 g

15.42 g dolomite ______ 100%

7.25 g MgCO₃ ________ z

z = 47%

7 0
3 years ago
What is the mass of 0.44 moles C6H6?
Crank

Answer:

1 mole is equal to 1 moles C6H6, or 78.11184 grams.

Hopefully this helped!

-✩sandwichchan✩

6 0
3 years ago
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