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Ivan
3 years ago
12

H2O2

Chemistry
2 answers:
Daniel [21]3 years ago
5 0

Explanation:

Identify the areas of the following atomic model, Explain how these are related to the formatio

antoniya [11.8K]3 years ago
4 0

Answer: This a redoc reaction.

The total ionic equation in separated aqueous solution will be,

2H^+(aq)+2O^{-}(aq)+Mg^{2+}(aq)+SO_3^{2-}(aq)\rightarrow Mg^{2+}(aq)+SO_4^{2-}(aq)+H_2O(l)

Explanation :

The given reaction is a redox reaction in which the oxygen shows reduction and sulfur shows oxidation reaction.

In the net ionic equations, we are not include the spectator ions in the equations.

Spectator ions : The ions present on reactant and product side which do not participate in a reactions. The same ions present on both the sides.

The given balanced ionic equation will be,

H_2O_2(aq)+MgSO_3(aq)\rightarrow MgSO_4(aq)+H_2O(l)

The total ionic equation in separated aqueous solution will be,

2H^+(aq)+2O^{-}(aq)+Mg^{2+}(aq)+SO_3^{2-}(aq)\rightarrow Mg^{2+}(aq)+SO_4^{2-}(aq)+H_2O(l)

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To measure the amount of nickel in some industrial waste fluid, an analytical chemist adds sodium hydroxide solution to a sample
Cloud [144]

Answer:

The final balanced equation is

Ni2+ + 2NaOH --> Ni (OH)2 + 2Na+

Explanation:

It is given that sodium hydroxide is added to collect the solid nickel(II) hydroxide product

The empirical equation for this statement is

Ni2+ + NaOH --> Ni (OH)2 + Na+

We will first balance the hydroxide molecule. On the right side there are two OH molecules.

Thus, on the left side we will take 2 sodium hydroxide

Ni2+ + 2NaOH --> Ni (OH)2 + Na+

Now we will balance the sodium ion which are 2 in numbers on the left side and 1 on the right side

Ni2+ + 2NaOH --> Ni (OH)2 + 2Na+

So, the final balanced equation is

Ni2+ + 2NaOH --> Ni (OH)2 + 2Na+

8 0
3 years ago
The radioactive substance cesium-137 has a half-life of 30 years. The amount At (in grams) of a sample of cesium-137 remaining a
stealth61 [152]

<u>Answer:</u> The amount of sample left after 20 years is 288.522 g and after 50 years is 144.26 g

<u>Explanation:</u>

We are given a function that calculates the amount of sample remaining after 't' years, which is:

A_t(t)=458\times (\frac{1}{2})^{\frac{t}{30}

  • <u>For t = 20 years</u>

Putting values in above equation:

A_t(t)=458\times (\frac{1}{2})^{\frac{20}{30}

A_t(t)=288.522g

Hence, the amount of sample left after 20 years is 288.522 g

  • <u>For t = 50 years</u>

Putting values in above equation:

A_t(t)=458\times (\frac{1}{2})^{\frac{50}{30}

A_t(t)=144.26g

Hence, the amount of sample left after 50 years is 144.26 g

6 0
3 years ago
What is the pH of a 0.028M solution (pH= -log(M))<br><br> A) 3.56<br> B) 2.88<br> C) 1.55<br> D) 1
kupik [55]

Answer:

1.55

Explanation:

-log(M)=pH

- Hope that helps! Please let me know if you need further explanation.

4 0
3 years ago
OP
Yuri [45]

the answer is d hope this helps

8 0
3 years ago
Read 2 more answers
PLEASE HELP!! 40 POINTS
PSYCHO15rus [73]

Answer:

1) 6.524779402×10^(-17)  

2)521.1g

3)113

Explanation:

5 0
3 years ago
Read 2 more answers
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