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2 years ago

All BUT one factor contributes to natural selection. That factor is

2 answers:

7 0

<span>the one that is not a factor that contribute to natural selection is : Population stability population refer to the capability of a community to maintain its total amount of organisms within a specific period of time. This has nothing to do with natural selection, which basically a nature's way to reduce the number of organism to findout which organisms are more adaptive</span>

laiz [17]2 years ago

7 0

Answer:B

Explanation:

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Please help with Chemistry! Very urgent! I’ll give you 40 points

kvv77 [185]

Answer: 3. No displacement, zinc is most reactive.

4. Calcium Chloride, Calcium is most reactive.

5. No displacement, Copper is most reactive

6. No displacement, Calcium is most reactive

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8. Carbon oxide, Carbon is most reactive

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2 years ago

What are small round structures in the cell that breaks down large food particles into smaller ones

Oxana [17]

The small particles are known as protiens

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2 years ago

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In an exothermic reaction, the average kinetic energy of the particles of matter ib the products _____

erastova [34]

Answer:

decreases

Explanation:

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2 years ago

What is a paragraph to fit this

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Answer:

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3 years ago

Convert 15.2 moles of K to atoms of K.

choli [55]

Answer:

$\boxed {\boxed {\sf 9.15*10^{24} \ atoms \ K}}$

Explanation:

To convert atoms to moles, Avogadro's Number must be used: 6.022*10²³.

This tells us the amount of particles (atoms, molecules, etc.) in 1 mole of a substance. In this case it is the atoms of potassium. We can create a ratio.

$\frac {6.022*10^{23} \ atoms \ K }{ 1 \ mol \ K }$

Multiply by the given number of moles: 15.2

$15.2 \ mol \ K *\frac {6.022*10^{23} \ atoms \ K }{ 1 \ mol \ K }$

The moles of potassium cancel.

$15.2 *\frac {6.022*10^{23} \ atoms \ K }{ 1 }$

The denominator of 1 can be ignored.

$15.2 * {6.022*10^{23} \ atoms \ K }{$

Multiply.

$9.15344*10^{24} \ atoms \ K$

The original measurement of moles has 3 significant figures, so our answer must have the same. For the number we calculated that is the hundredth place. The 3 in the thousandth place tells us to leave 5.

$9.15*10^{24} \ atoms \ K$

In 15.2 moles of potassium, there are <u>9.15*10²⁴ atoms of potassium.</u>

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2 years ago