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Contact [7]
2 years ago
10

Connect and Apply scientific knowledge to explain the following situations:

Chemistry
1 answer:
mixer [17]2 years ago
7 0

Answer:

b.Rearrange the two equations to make each variable the focus (you will end up with three variations for each equation).

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15. Within a voltaic cell,___
kobusy [5.1K]

Answer:

B. oxidation; reduction

Explanation:

A voltaic cell is electro-chemical cell in which chemical energy is converted into electrical energy.

1. This cell utilizes chemical reaction to generate electric.\

2. there two electrode anode and cathode

3. At Anode oxidation occurs

4. At cathode reduction occurs

5. chemical is present in the cell which is electrolyte which completes the circuit of the voltaic cell.

  • oxidation is the process in which there is loss of electrons
  • Reduction is the process in which there is gain of electrons

___________________________________________________

Based on above discussion

At anode oxidation takes place

At cathode reduction takes place.

Hence, correct option is B. oxidation; reduction

7 0
2 years ago
Which of the following is the correct formula for sodium oxide? NaO2 Na­O Na2O3 Na3O4 Na2O
olga nikolaevna [1]
Since Na has a 1+ charge and O has a -2 charge, by reversing the charges and placing them as subscripts for the other atoms the formula is Na2O1 or simply Na2O.
7 0
2 years ago
Which of the following explains this observation?
NikAS [45]
It would be C i’m pretty sure
6 0
2 years ago
Evaporation is commonly used to concentrate dissolved solids in a liquid feed stream and produce pure water vapor.
Sergio [31]

Answer:

True

Explanation:

Evaporation is the process by which a substance changes its state from liquid to gas. evaporation occurs at all temperatures but it's rate increases as temperature increases.

Pure water vapour can be produced by evaporation.

As the liquids are removed, the solids present in solution becomes more concentrated.

7 0
2 years ago
20 mL of 80°C water is mixed with 20 mL of 0°C water in a perfect calorimeter. What is the final temperature?
OLga [1]
Times it bye for then ur answer will be 80
5 0
2 years ago
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