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dalvyx [7]
3 years ago
5

Ocean water is the coldest at ​

Chemistry
1 answer:
Thepotemich [5.8K]3 years ago
4 0
The bottom of the ocean because it does not get sun light
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How many sodium atoms are present in 0.2310 g of sodium?
umka21 [38]

The number of atoms present in 0.231 g of sodium is 6.02 x 10²¹ atoms.

The given parameters;

  • <em>mass of the reacting sodium = 0.231 g</em>
  • <em>1 mole of an atom = 6.02 x 10²³ atoms</em>
  • <em>the atomic mass of sodium is 23 g/mol</em>

The number of moles of 0.231 g of sodium available is calculated as;

no. \ of \ moles = \frac{Reacting \ mass}{Molar \ mass} \\\\no. \ of \ moles = \frac{0.231}{23} \\\\no. \ of \ moles = 0.01 \ mol.

The number of atoms of 0.01 mole of sodium available is calculated as;

1 mole ---------- 6.02 x 10²³ atoms

0.01 ----------------- ?

= 0.01 x 6.02 x 10²³ atoms

= 6.02 x 10²¹ atoms.

Thus, the number of atoms present in 0.231 g of sodium is 6.02 x 10²¹ atoms.

Learn more here:brainly.com/question/11461637

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3 years ago
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The scientific Method
allochka39001 [22]
Observation : a piece of info we all gather through our 5 senses
Hypotheses: a testable explanation for an observation
Data: info that scientists gather during an experiment
Experiment: a procedure that is designed to test a hypothesis
Conclusion a judgment or decision
Scientific method a series of steps
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3 years ago
What does a mole represent?
Fudgin [204]
6.023*10^23 of any given particle, be it an atom or a molecule.
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Balance each of the following redox reactions occurring in basic solution. H2O2+ClO2--&gt;ClO2- +O2. H2O2(aq) ---&gt;O2(g). ClO4
Evgesh-ka [11]

For the presented problem, the balance of the presented equation is H2O2 + 2ClO2 => 2ClO2- + O2 + 2H. I am hoping that this answer has satisfied your query about and it will be able to help you, thank you and have a nice day.

7 0
3 years ago
Percy finds a rock in his backyard. It looks like several pebbles cemented together. Percy has found _____.
Digiron [165]

Answer:

Percy has found conglomerate.

Explanation:

Conglomerate is a sedimentary rock,formed from round fragments embedded in a cementing material such as silica

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