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2 years ago

7

How do animal behaviors, such as hibernation or migration, enhance their survival?

1 answer:

Lynna [10]2 years ago

7 0

Answer:

the reason a lot of animal ether hibernate is because they are escaping the cold or looking for food and the only reason we Humans don't hibernate is for two reasons. Firstly, our evolutionary ancestors were tropical animals with no history of hibernating: humans have only migrated into temperate and subarctic latitudes in the last hundred thousand years or so.

Explanation:

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Write a balanced nuclear equation for the beta decay of protactinium

PSYCHO15rus [73]

$_{91}^{231}Pa --\ \textgreater \ _{92}^{231}U + _{-1}^{0}e$

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3 years ago

How many sulfur atoms are there in 21.0 g of al2s3?

ValentinkaMS [17]

Given the mass of aluminum sulfide $Al_{2}S_{3}$ = 21.0 g

Molar mass of $Al_{2}S_{3}$ = $2 * Molar mass of Al + 3 *molar mass of S = 2(27g/mol)+3(32.g/mol)=150.g/mol$

Calculating the moles of $Al_{2}S_{3}$ :

$21.0 g *\frac{1 mol}{150 g} = 0.14 mol Al_{2}S_{3}$

Each mole $Al_{2}S_{3}$ has 3 mol S.

Each mole S constitutes $6.022*10^{23} atoms of S$

Calculating atoms of S in 0.14 mol $Al_{2}S_{3}$ :

$0.14 mol Al_{2}S_{3} *\frac{3mol S}{1 mol Al_{2}S_{3} }*\frac{6.022*10^{23}atoms S }{1 mol S}$

= $2.53 * 10^{23} atoms of S$

3 0

3 years ago

S-->SO2-->SO3-->H2SO4-->SO2-->H2SO3-->Na2SO3-->SO2--> Na2SO3-->Na2SO4-->BaSO4

siniylev [52]

That is not a question/problem and makes no sense whatsoever

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2 years ago

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Veronika [31]

Answer:

Solid

Explanation:

The particles are densely packed and in a defined shape, therefore they would be defined as a solid.

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