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katrin [286]
3 years ago
8

Relation between enviromment population and devlopment​

Chemistry
2 answers:
Svetllana [295]3 years ago
7 0

Answer:

Population, environment, and development are interrelated to each other. ... It brings progress or positive change in social, economic and cultural aspects in the society and the nation. Development brings peace and security along with it. It helps to fulfill the needs and desires of every citizen of the nation.

Virty [35]3 years ago
7 0

Answer:

The relationship between population, environment and development is inseparable. ... It was also recognized that bringing about a sustainable relationship between human numbers, resources and development required activities at the local, national, regional and global levels.

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Name the layers of earth in order from most dense to least dense.
Oksi-84 [34.3K]
1. inner core
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3 years ago
2. Assume that a sample of 10.00 g of a solid unknown is dissolved in 25.0 g of water. Assuming that pure water freezes at 0.0 o
Roman55 [17]

Answer:

m = 3 moles/kg

Explanation:

This is a problem of freezing point depression, and the formula or expression to use is the following:

ΔT = i*Kf¨*m (1)

Where:

ΔT: Change of temperature of the solution

i: Van't Hoff factor

m: molality of solution

Kf: molal freezing point depression of water (Kf = 1.86 °C kg/mol)

Now, the value of i is the number of moles of particles obtained when 1 mol of a solute dissolves. In this case, we do not know what kind of solution is, so, we can assume this is a non electrolyte solute, and the value of i = 1.

Let's calculate the value m, which is the molality solving for (1):

m =  ΔT/Kf (2)

Finally, let's calculate ΔT:

ΔT = T2 - T1

ΔT = 0 - (-5.58)

ΔT = 5.58 °C

Now, let's replace in (2):

m = 5.58/1.86

<em>m = 3 moles/kg</em>

<em>This is the molality of solution.</em>

<em>The other data of mass, can be used to calculate the molecular mass of this unknown solid, but it's not asked in the question.</em>

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3 years ago
The size of an organism is most likely determined by...?
kotegsom [21]

Answer:

3

Explanation:

3 0
3 years ago
SOMEBODY PLEASE HELP.. I DONT UNDERSTAND
elena-s [515]
Na,C12 is the answer
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Arrhenius base definition
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Arrhenius base is a substance that , when dissolved in an aqueous solution , increase the concentration of hydroxide (OH) ion in the solution


I hope that's help !

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3 years ago
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