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Dima020 [189]
3 years ago
13

Select the answer that best explains why Sally has blonde hair and Jim has brown hair. (A) Species Diversity

Chemistry
2 answers:
kolbaska11 [484]3 years ago
7 0
The answer is b genetic diversity
anyanavicka [17]3 years ago
3 0
The answer is Genetic Diversity So B
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The answer is: <span>B) The phosphoric acid in cola easily removes dirt and grime.
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Cola is a drink containing phosphoric acid in its complex composition. Acidic properties of Cola allow her to remove rust, dirt, and grime from chrome surface. In the same time, it is a very diluted solution of phosphoric acid which is very important not to damage a metal.
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4 years ago
How many moles of water will be generated during the combustion of 0.38 moles of methyl alcohol (CH3OH)? 2CH3OH + 3O2 2CO2 + 4H2
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3 0
4 years ago
A sample of oxygen occupies 20.1 liters under a pressure of 1520 torr at 25.0o What volume would it occupy at 25.0oC if the pres
Zolol [24]

Answer:

The volume that the sample of oxygen would occupy at 25 ° C if the pressure were reduced to 760.0 torr is 40.2 L

Explanation:

Boyle's law establishes the relationship between the pressure and the volume of a gas when the temperature is constant, so that the pressure of a gas in a closed container is inversely proportional to the volume of the container. That is, if the pressure increases, the volume decreases, while if the pressure decreases, the volume increases.

Boyle's law is expressed mathematically as:

Pressure * Volume = constant

or P * V = k

Considering an initial state 1 and a final state 2, it is true:

P1* V1= P2*V2

In this case:

  • P1= 20.1 L
  • V1= 1520 torr
  • P2= 760 torr
  • V2= ?

Replacing:

20.1 L* 1520 torr= 760 torr* V2

Solving:

V2=\frac{20.1 L* 1520 torr}{760 torr}

V2= 40.2 L

<em><u>The volume that the sample of oxygen would occupy at 25 ° C if the pressure were reduced to 760.0 torr is 40.2 L</u></em>

<em><u></u></em>

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3 years ago
This formula equation is unbalanced.
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answer is: coefficient is 2.



8 0
3 years ago
NOOOO LINNKKKSSS RIGHT ANSWERS ONLY!!!!!!
lawyer [7]
I belive its D if not right sorry.
3 0
3 years ago
Read 2 more answers
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