Which type of species distribution pattern might require collaboration between different countries for effective preservation?

Chemistry

1 answer:

Zolol [24]3 years ago

4 0

Answer:

migratory distribution

Explanation: The pattern of migratory distribution of species may require collaboration between different countries for effective preservation. This is because species migration can make them enter different territories, which will need to provide an effective level of preservation for species survival

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NaOH has a molarity of 2.5 M and a volume of 4 Liters, how many moles are in<br> the solution?

Inga [223]

Answer:

10. mol NaOH

Explanation:

2.5 M = 2.5 mol/L

2.5 mol/L * 4 L = 10. mol

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3 years ago

Which particle often described as having very little or no mass since the mass number does not change when you add more and more

astra-53 [7]

Answer:

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Explanation:

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3 years ago

How does cold water affect the speed of dissolving?

sineoko [7]

Answer:

Anything that can be done to increase the frequency of those collisions and/or to give those collisions more energy will increase the rate of dissolving.

Explanation:

depended on the temperature

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3 years ago

if 28.5 g of calcium hydroxide is dissolved in enough water to make 185g of solution what is the percent by mass of calcium hydr

DENIUS [597]

The percent by mass of calcium hydroxide in the solution : 15.41%

<h3>Further explanation</h3>

The concentration of a substance can be expressed in several quantities such as moles, percent (%) weight/volume,), molarity, molality, parts per million (ppm) or mole fraction. The concentration shows the amount of solute in a unit of the amount of solvent.

Mass of solute (Ca(OH₂-Calcium hydroxide) : 28.5

Mass of solution = 185 g

$\tt \%mass=\dfrac{mass~solute}{mass~solution}\times 100\%\\\\\%mass=\dfrac{28.5~g}{185~g}\times 100\%\\\\\%mass=15.41\%$

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3 years ago

Someone pls help me I will mark you as brain

Reptile [31]

3rd one I think it is.

5 0

2 years ago