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ladessa [460]
3 years ago
13

Deposition can occur where wind or running water slows down? true or false

Chemistry
1 answer:
Shalnov [3]3 years ago
6 0

Answer:

The answer is True.

Explanation:

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A phytoplankton is continually exposed to an oil-soluble chemical. Over time, the concentration of the chemical within the phyto
Elis [28]

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:

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3 0
2 years ago
So confused can someone help ?
nika2105 [10]

Answer:

well in a solid  pack together as tightly as possible in a neat and ordered arrangement.

and a liquid are close together (touching) but they are able to move/slide/flow past each other

Explanation:

6 0
3 years ago
How much heat energy, in kilojoules, is required to convert 72.0 gg of ice at −−18.0 ∘C∘C to water at 25.0 ∘C∘C ? Express your a
Ghella [55]

Answer: The enthalpy change is 34.3 kJ

Explanation:

The conversions involved in this process are :

(1):H_2O(s)(-18^0C)\rightarrow H_2O(s)(0^0C)\\\\(2):H_2O(s)(0^0C)\rightarrow H_2O(l)(0^0C)\\\\(3):H_2O(l)(0^0C)\rightarrow H_2O(l)(25^0C)

Now we have to calculate the enthalpy change.

\Delta H=[m\times c_{s}\times (T_{final}-T_{initial})]+n\times \Delta H_{fusion}+[m\times c_{l}\times (T_{final}-T_{initial})]

where,

\Delta H = enthalpy change = ?

m = mass of water = 72.0  g

c_{s} = specific heat of ice = 2.09J/g^0C

c_{l} = specific heat of liquid water = 4.184J/g^0C

n = number of moles of water = \frac{\text{Mass of water}}{\text{Molar mass of water}}=\frac{72.0g}{18g/mole}=4.00moles

\Delta H_{fusion} = enthalpy change for fusion = 6010 J/mole

Now put all the given values in the above expression, we get

\Delta H=[72.0g\times 2.09J/g^0C\times (0-(-18)^0C]+4.00mole\times 6010J/mole+[72.0g\times 4.184J/g^)C\times (25-0)^0C]\Delta H=34279.8J=34.3kJ        (1 KJ = 1000 J)

Therefore, the enthalpy change is 34.3 kJ

5 0
3 years ago
If two gases, A and B, in separate 1 liter containers exert
babunello [35]

Answer:

5Atm

Explanation:

I just guess and it’s right

5 0
3 years ago
A block of wood has the mass of 180 grams.it is 10 cm long,6 cm wide and 4 cm thick.what is it’s density?
DochEvi [55]

Answer:

0.75 g/cm³

Explanation:

Given data:

Mass of wooden block =  180 g

Length of block = 10 cm

Width of block = 6 cm

Height or thickness = 4 cm

Density of block = ?

Solution:

Volume of block = height × length × width

Volume of block = 4 cm × 10 cm× 6 cm

Volume of block = 240 cm³

Density of block:

density = mass/ volume

d = 180 g/ 240 cm³

d = 0.75 g/cm³

4 0
3 years ago
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