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3 years ago

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How do subscripts represent the charge balance of ions

1 answer:

Jet001 [13]3 years ago

8 0

<h3><u>Answer and explanation</u>;</h3>

To balance the charges of ions the number of electrons lost is equal to the number of electrons gained. The overall net charge must be zero.
The number of ions needed to accomplish this is represented by the subscripts.
For any given ionic compound, the product of the charge on the ion (or multiatomic ionic group) times the subscript of the ion will give a total charge of zero when all ions are considered.

For examples: NaCl Na = +1 Cl = -1 total is zero

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Need helpppppp hurry pls, i just really need help

mojhsa [17]

Answer:

6.8 mole of O₂

Explanation:

Given expression:

2H₂ + O₂ → 2H₂O

Number of moles of H₂ = 13.6moles

Unknown:

Number of moles of O₂ = ?

Solution:

In the given problem, we are to find the number of moles of oxygen gas that will use up 13.6mole of hydrogen gas;

From the reaction equation;

2 mole of H₂ will completely react with 1 mole of O₂

13.6 moles of H₂ will completely be used up by $\frac{13.6}{2}$ mole of O₂

= 6.8 mole of O₂

7 0

3 years ago

a 20ml sample of hcl was titrated with the 0.0220 M Naoh. to reach the endpoint required 23.72 mL of the NaOh. Calculate the mol

Y_Kistochka [10]

Answer:

Molarity of HCl=0.026092M

Explanation:

The equation for the reaction is;

HCl + NaOH ⇒ NaCl + H2O

Using the formular, $\frac{C_{A}V_{A}}{C_{B}V_{B} }=\frac{nA}{nB}$ ..........equ1

where $C_{A}$ is the concentration of Acid,

$V_{A}$ is volume of acid

$C_{B}$ is concentration of the base

$V_{B}$ is volume of the base

nA is the number of moles of Acid

nB is number of moles of base

nA = 1, nB=1 , $V_{A}=20ml$ , $C_{B}=0.022M$ , $V_{B}=23.72mL$

we will input these values into equation1 to solve for $C_{A}$

$\frac{C_{A}*20}{0.022*23.72}=\frac{1}{1}$

$C_{A}*20=0.022*23.72$

$C_{A}=0.026092M$

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3 years ago

How many moles of KMnO, are in 66.38 g of KMnO?

schepotkina [342]

Answer:.603moles

Explanation:do given over 1 so 66.38 over 1 then multiply by 1 over 110.035344(the atomic mass of KMnO) and then you get the answear

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3 years ago

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igomit [66]

Answer:

exothermic

Explanation:

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4 years ago

Which set of quantum numbers cannot specify an orbital?.

vodomira [7]

Answer: n=2,l=1,ml=1 n=3,l=2,ml=0 n=3,l=3,ml=2 n=4,l=2,ml=0.

Explanation:

hope it helps

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3 years ago