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8090 [49]
3 years ago
14

Which of the following is a reason for cell division?

Chemistry
2 answers:
lilavasa [31]3 years ago
7 0
To repair damage to an organism


Explanation : When you get cut on something sharp what happens does it say the same well if you ever been cut then you know it heals but so it would be repair of damage to an organism have a nice day (:
vekshin13 years ago
6 0

Answer:

D, to repair the damged cells is noy a reason that cells reproduce by siving in order to maintaon homeostasis.

Explanation:

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A chemist must dilute 47.2 mL of 150. mM aqueous sodium nitrate solution until the concentration falls to . He'll do this by add
erma4kov [3.2K]

Answer:

0.295 L

Explanation:

It seems your question lacks the final concentration value. But an internet search tells me this might be the complete question:

" A chemist must dilute 47.2 mL of 150. mM aqueous sodium nitrate solution until the concentration falls to 24.0 mM. He'll do this by adding distilled water to the solution until it reaches a certain final volume. Calculate this final volume, in liters. Be sure your answer has the correct number of significant digits. "

Keep in mind that if your value is different, the answer will be different as well. However the methodology will remain the same.

To solve this problem we can<u> use the formula</u> C₁V₁=C₂V₂

Where the subscript 1 refers to the concentrated solution and the subscript 2 to the diluted one.

  • 47.2 mL * 150 mM = 24.0 mM * V₂
  • V₂ = 295 mL

And <u>converting into L </u>becomes:

  • 295 mL * \frac{1 L}{1000mL} = 0.295 L

6 0
4 years ago
Nebulae are enormous clouds in outer space.they are made mostly of hydrogen gas ,helium gas and dust , some nubelae glow brightl
adell [148]
They’re different in regards to the fact that nebulae are not actively burning while stars are
3 0
3 years ago
Which of the following is a physical model of the Sun? A. an equation that describes the Sun’s motion B. a chart that lists the
Pie
E since its a physical model i.e. you can touch and feel the model :)
6 0
4 years ago
Read 2 more answers
Please help me! This is due today.
natta225 [31]

Answer:

Steps of a scientific investigation include:

1. Identifying a research question or problem

2. Forming a hypothesis

3. Gathering evidence

4. Analyzing evidence

5. Deciding whether the evidence supports the hypothesis

6. Drawing conclusions

7. Communicating the results.

7 0
4 years ago
If 14.5kj of heat were added to 485g of liquid water, how much would its temp increase
OlgaM077 [116]
<span>7.15 degrees C The specific heat capacity of water is 4.1813 J/(g*K). So we have 3 values with the units kJ, g and J/(g*K). We can trivially convert from kJ to J by multiplying by 1000. And we want to get a result with the unit K (degrees Kelvin). So let's do it. First, let's cancel out the g unit by multiplying. 4.1813 J/(g*K) * 485 g = 2027.9305 J/K Now we can cancel out the J unit by dividing. But if we divide by the energy, we'll be left with the reciprocal of K, not K. So instead divide by the J/K unit. So 14500 J / 2027.9305 J/K = 7.150146418 K Rounding to 3 significant figures gives us 7.15 K. And since degrees C and degrees K are the same size, the temperature will increase by 7.15 degrees C</span>
6 0
3 years ago
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