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Brrunno [24]
3 years ago
7

5. What are the oxidation states for: a. elements in group 1?_ b. elements in group 2?

Chemistry
1 answer:
m_a_m_a [10]3 years ago
5 0

+1

+2

Explanation:

The oxidation sate of elements in group 1 is +1 and for elements in group 2 is +2.

The oxidation number is the formal charge assigned to an atom present in a molecule or formula unit.

The oxidation number of elements are closely related to their valency. It shows the combining power of each element.

Generally, the oxidation number of group 1 element is +1 and group 2 element is +2.

learn more:

Oxidation number brainly.com/question/2086855

#learnwithBrainly

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If 65.5 ml of HCl stock solution is used to make 450 ml of a 0.675 M HCl dilution, what is the molarity of the stock solution ?
Talja [164]

<u>Answer:</u> The molarity of the stock solution is 4.64 M

<u>Explanation:</u>

To calculate the molarity of the diluted solution, we use the equation:

M_1V_1=M_2V_2

where,

M_1\text{ and }V_1 are the molarity and volume of the stock solution

M_2\text{ and }V_2 are the molarity and volume of diluted solution

We are given:

M_1=?M\\V_1=65.5mL\\M_2=0.675M\\V_2=450mL

Putting values in above equation, we get:  

M_1\times 65.5=0.675\times 450\\\\M_1=4.64M

Hence, the molarity of the stock solution is 4.64 M

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3 years ago
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4 years ago
What is hydrogen role in nuclear fusion?
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I hope it's helpful!

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Answer:

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~~~Inuola1234

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3 years ago
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