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zvonat [6]
3 years ago
15

A battery is an example of a(n) _________. A. anode B. voltaic cell C. cathode D. electrolytic cell

Chemistry
1 answer:
Harrizon [31]3 years ago
4 0

Answer:

The answer is D) Electrolytic cell

Explanation:

An electrolytic cell is a device used for the decomposition by the electrical current of ionized substances called electrolytes.

When the two electrodes are connected by a wire, electrical energy is produced, and a flow of electrons takes place from the electrode.

These cells are the closest thing to a galvanic battery.

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A surplus (having “extra”) or deficit (having “fewer”) of electrons?
Nikolay [14]

Answer:

Charge

Explanation:

A surplus (having "extra") or deficit (having "fewer") of electrons possessed by an object. A charge can cause attractive or repulsive forces which can be observed in some cases (e.g. pith balls, bits of plastic).

7 0
3 years ago
Mass is the measure of the amount of ___ in an object.
Kamila [148]

Answer:

mass is the measure of the amount of weight pulled by gravity in an object B-)

5 0
3 years ago
If the mole fraction of sulfuric acid H2SO4 is 0.432 what is the percent by mass of H2SO4.
Sever21 [200]

Answer:

19.47%

Explanation:

<em>The percentage by mass of </em>H_2SO_4<em> would be </em><em>19.47%</em><em>.</em>

The percentage by mass of a substance in solution is calculated as:

   \frac{mass of substance}{mass of substance + water}  * 100%

Given that the mole fraction of H_2SO_4 = 0.432

The total number of mole fraction of a solution = 1

Hence, mole fraction of water = 1 - 0.432 = 0.568

Mass of water = molar mass x mole

                              = 98.079 x 0.432 = 42.37 g

Mass of H_2SO_4 = molar mass x mole

                          = 18.02 x 0.568 = 10.24 g

Hence,

<em>%mass of</em> H_2SO_4 = \frac{10.24}{10.24 + 42.37} * 100

                         = 19.47%

4 0
3 years ago
If you had a cup full of methanol and a pool full of methanol, would the mass change?
AnnyKZ [126]

Answer:

the mass does not change

Explanation:

6 0
3 years ago
What types of questions can be answered through science, and what questions are beyond the boundaries of science? Be specific an
AfilCa [17]
<span>Cause and Effect relationship questions can be answered through science. Science can't answer definite explanations of a question but can show the relationships that they have concluded through research. As an example I did an experiment when I was a kid on mold growing on applesauce if Cinnamon slowed growth or not. I could conclude that there did seem to be a relationship with cinnamon and applesauce that cinnamon slowed growth. I can't say it definitely proved it it just showed the relationship.</span>
5 0
3 years ago
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