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hram777 [196]
3 years ago
5

Through a process known as electrolysis, water can be split into hydrogen and oxygen. What type of reaction is this? Give an exp

lanation for your choice.
Chemistry
1 answer:
AlexFokin [52]3 years ago
8 0
Electrolysis of water<span> is the </span><span>decomposition reaction, because from one molecule (water) two molecules (hydrogen and oxygen) are produced. Water is separeted into two molecules:
</span>Reaction of reduction at cathode: 2H⁺(aq) + 2e⁻<span> → H</span>₂(g<span>).
</span><span><span>Reaction of oxidation at anode: 2H</span></span>₂<span><span>O(l) → O</span></span>₂<span><span>(g) + 4H</span></span>⁺(<span><span>aq) + 4e</span></span>⁻.<span><span>
</span></span>
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Which of the following ions is formed when the positive hydrogen ions from an acid bond to water molecules? он- ООН- он20* ОНО*​
Vesna [10]

Answer:

2ND ONE

Explanation:

5 0
3 years ago
The air all around us is a mixture of gasses containing nitrogen, oxygen, carbon dioxide, argon
KiRa [710]

Answer:

Total pressure = 4.57 atm

Explanation:

Given data:

Partial pressure of nitrogen = 1.3 atm

Partial pressure of oxygen = 1824 mmHg

Partial pressure of carbon dioxide = 247 torr

Partial pressure of argon = 0.015 atm

Partial pressure of water vapor = 53.69 kpa

Total pressure = ?

Solution:

First of all we convert the units other into atm.

Partial pressure of oxygen = 1824 mmHg / 760 = 2.4 atm

Partial pressure of carbon dioxide = 247 torr / 760 = 0.325 atm

Partial pressure of water vapor = 53.69 kpa / 101 = 0.53 atm

Total pressure = Partial pressure of N +  Partial pressure of O +  Partial pressure of CO₂ +  Partial pressure of Ar +  Partial pressure of water vapor

Total pressure = 1.3 atm + 2.4 atm + 0.325 atm + 0.015 atm + 0.53 atm

Total pressure = 4.57 atm

4 0
3 years ago
A 2.04 g lead weight, initially at 10.8 oC, is submerged in 7.62 g of water at 52.3 oC in an insulated container. clear = 0.128
alisha [4.7K]

Answer: The final temperature of both the weight and the water at thermal equilibrium is 50.26^{o}C.

Explanation:

The given data is as follows.

mass = 7.62 g,           T_{2} = 10.8^{o}C

Let us assume that T be the final temperature. Therefore, heat lost by water is calculated as follows.

       q = mC \times \Delta T    

          = 7.62 g \times 4.184 J/^{o}C \times (52.3 - T)

Now, heat gained by lead will be calculated as follows.

       q = mC \times \text{Temperature change of lead}  

           = 2.04 \times 0.128 \times (T - 11.0)

According to the given situation,

     Heat lost = Heat gained

7.62 g \times 4.184 J/^{o}C \times (52.3 - T) = 2.04 \times 0.128 \times (T - 11.0)

        T = 50.26^{o}C

Thus, we can conclude that the final temperature of both the weight and the water at thermal equilibrium is 50.26^{o}C.

7 0
3 years ago
PLS HELP IF YOU WANT A BRAINLIEST BEST ANSWER CHOICE, GETS A BRAINLIEST
Natalija [7]

Answer:

It would be 25% because each equals 25%.

Explanation:

There is 4 "shapes" each can equal 25 because 25+25+25+25=100.

4 0
3 years ago
Read 2 more answers
A distillation column is separating 150.0 kmol/h of a saturated liquid mixture that is 30.0 mol% methanol and 70.0 mol% water. T
hoa [83]

Answer:

Explanation:

From the information given:

Feed F = 150.0 kmol/hr

The saturated liquid mixture of the distillation column is X_F = 30%

Reflux ration  = 2.0%

methanol distillate mole fraction X_D = 0.990

recovery of methanol in the distillate = 97.0%

The distillate flow rate D can be determined by using the formula;

D = 0.97 (F* X_F)

D = 0.97 × 150 × 0.3

D = 43.65 kmol/h

The bottom flow rate Balance B  on the column is:

F = D + B

150 = 43.65 + B

B = ( 150 - 43.65 )kmol/h

B = 106.35 kmol/h

The methanol mole fraction in the bottom x_M can be computed by using the formula:

F*X_F = DX_D + BX_B

150(0.3) = 43.65(0.999) + 106.3(X_B)

45 = 43.60635 + 106.3(X_B)

45 -  43.60635 = 106.3(X_B)

1.39365 = 106.3(X_B)

X_B = 1.39365 /  106.3

X_B =  0.013

the fractional recovery of water in the bottoms f is calculated as:

f = \dfrac{B(1-X_B)}{F_X_F}

f = \dfrac{106.35(1-0.013)}{150\times 0.7}

f = \dfrac{106.35(0.987)}{150\times 0.7}

f = 0.99969

3 0
3 years ago
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