Answer : Option 4) Pu-239
Explanation : Plutonium-239 is a radioisotope of the element plutonium which emits alpha particles. The decaying process of Pu-239 emits alpha particles. It is widely used as a nuclear reactor fuel. Pu-239 is also used as a primary fissile isotope for the production of nuclear weapons.
Answer:
There will be a high effect on the calculation because a lower molar mass will be reported.
Explanation:
Hello,
In this case, since a higher volume is used, a higher value is taken into account when dividing to get the molecular mass. In such a way, the calculated molecular mass will be surely lower than the real molecular mass implying that there will be a high effect on the required calculation, nevertheless, as 37mL is a considerable mistake, the effect won't be too high.
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<span>Answer: option C. the presence of free-flowing ions.
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<span>Explanation:
Ionic compounds dissociate in water forming solutions with free ions. The solution conducts electricity and is named electrolyte.
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<span>The ions are species with charge: cations are ions with positive charge and anions are ions with negative charge.
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<span>The ions become the carrier of the charge so they are the responsible for the flow of current.
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</span><span>So as the electrons are the carriers of the charge in the solid conductors (copper, aluminun, and others), the ions are the carriers of the charge in solutions.</span><span /><span>That is how the the electrolyte solutons conduct electricity.</span>
Answer:
32 g
Explanation:
molar masses of elements such as sulfur can be found on the periodic table.
the molar mass listed on the periodic table equals 1 mole of the atom which also equals 6.02×10^23
therefore, 32g = 1 mole of sulfur = 6.02×10^23
(1 mole always equals 6.02×10^23)
Answer:
Melting and Boiling Point Determination
The physical properties of a substance can be used to establish its purity. These properties include the melting point and boiling point. Different substances tend to have different melting and boiling points, and any pure substance will have a specific melting and boiling point.
