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Fantom [35]
3 years ago
14

4. The half-life for a 100-gram sample of radioactive element X is 5 days. How much of element X remains after 10 days have pass

ed?
A. 25 g
B. 50 g
C. 75 g
D. 100 g
Chemistry
1 answer:
serg [7]3 years ago
3 0
Imma go with b : the evidence is in the text
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: The conductivity of electrolyte solutions: (a) 0.1 M NaCl (b) 0.05 M NaCl (c) 0.1 M HgCl2. An electrolyte solution conducts electricity because of the movement of ions in the solution (see above). The larger the concentration of ions, the better the solutions conducts. Weak electrolytes, such as HgCl2, conduct badly because they produce few ions when dissolved (low concentration of ions) and exist mainly in the form of molecules.

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the water in a 150-mL flask is poured into a beaker that contains 600 mL of ethyl alcohol. Which sis stands solvent in this mixt
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Taking into account the definition of solvent and solute, ethyl alcohol because it has a much larger volume than water.

<h3>Definition of solute and solvent</h3>

The solution is a homogeneous mixture of two or more components that have the same chemical and physical properties in a single phase. A solution is made up of two main components: the solute and the solvent.

The solute is the substance that dissolves in a solution and is usually found in a lower proportion than the solvent.

Solvent is the substance in which a solute dissolves, resulting in a chemical solution and is the component that is found in the highest proportion in the solution. It will always be the solvent who will determine the state of the matter that will have the solution.

<h3>Solute and solvent in this case</h3>

In this case,  you consider that the solute is the component in less quantity and the solvent is the major component, and you know that the water in a 150 mL flask is poured into a beaker that contains 600 mL of ethyl alcohol.

Then, ethyl alcohol because it has a much larger volume than water.

Learn more about solute and solvent:

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#SPJ1

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