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DedPeter [7]
2 years ago
6

*CHEMISTRY*

Chemistry
1 answer:
mylen [45]2 years ago
6 0

Answer:

I'm sure it's eather the first one or the third one because they shrink because of the thin air compiling

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If a cell wants to tell another cell what to do, it will send the message through
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Answer:

it will send the message through the axon

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How many atoms of hydrogen are present in 7.63 g of ammonia? please help me ??
GarryVolchara [31]
The atoms  of  hydrogen  that are  present  in  7.63 g  of ammonia(NH3)

find  the  moles  of NH3 =mass/molar mass
 7.63 g/ 17 g/mol = 0.449  moles

since there  is  3 atoms of H  in NH3 the  moles of  H = 0.449 x 3 = 1.347 moles

by  use  of  1 mole = 6.02 x10^23  atoms
what  about  1.347  moles

= 1.347  moles/1   moles  x 6.02 x10^23 atoms = 8.11 x10^23  atoms of Hydrogen
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3 years ago
A student performs an experiment to determine the melting point of ice in order to investigate the strength of electrostatic for
andrezito [222]

Once the student has finished his experiment, additional steps he may take are to analyze the data gathered and draw a conclusion, then publish his findings to be seen by his peers (other students).

<h3 /><h3>What comes after the experiment?</h3>
  • Once an experiment is concluded, one must go over the data gathered.
  • By this, we mean to analyze the information obtained through the experiment.
  • This allows the student to draw a conclusion backed by evidence.
  • Once complete, it is wise to share and discuss the findings with peers.

Therefore, we can confirm that once the experiment is completed, the most common action that follows is to draw a conclusion based on the analysis of the data gathered during the experiment, then discuss the findings with peers.

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4 0
2 years ago
What happens when a parking lot is built in a wetlands area
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It will most likely get flooded at one point in time.
8 0
3 years ago
Read 2 more answers
Be sure to answer all parts. For an aqueous solution of sodium chloride (NaCl), determine the molarity of 4.05 L of a solution t
SpyIntel [72]

Answer:

0.824\ \text{M}

5.62\ \text{L}

20.89\ \text{mol}

Explanation:

Molar mass of NaCl = 58.44 g/mol

Mass of NaCl = 195 g

Volume of solution = 4.05 L

Molarity of solution is

\dfrac{195}{4.05}\times \dfrac{1}{58.44}=0.824\ \text{M}

The molarity of the solution is 0.824\ \text{M}

Moles of NaCl = 4.63 mol

Volume is given by

\dfrac{4.63}{0.824}=5.62\ \text{L}

The volume of the solution that contains the required amount NaCl is 5.62\ \text{L}

Volume of solution = 25.35\ \text{L}

Moles of solution is given by

0.824\times 25.35=20.89\ \text{mol}

The number of moles of NaCl is 20.89\ \text{mol}.

6 0
3 years ago
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