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OlgaM077 [116]
3 years ago
12

27/13AL+? ->> 24/11NA+4/2HE

Chemistry
2 answers:
Basile [38]3 years ago
8 0

Answer:

hhhsstyi chick to yay to today do y'all

EastWind [94]3 years ago
8 0

Answer:

 ¹₀n

Explanation:

The given expression is:

          ²⁷₁₃Al      +     ₐᵇT   →   ²⁴₁₁Na    +    ⁴₂He

This expression is typical of nuclear reactions. To balance this expression we must conserved the mass number and the atomic number.

The mass number is the superscripts and the atomic number is the subscript;

 Now;

 conserving mass number:

             27 + b  = 24 + 4

             27 + b  = 28  

                   b  = 28 - 27  = 1

conserving the atomic number;

            13 + a  = 11 + 2

             13 + a  = 13

                    a  = 0

So;

The particle T is a neutron    ¹₀n

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I think in the middle of the day because the sun isn't going down yet

Explanation:

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3 years ago
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Sure, what's the questions and I can get it for you, and if need further assist you.

3 0
3 years ago
Convert 21.8 in^3 to liters
Slav-nsk [51]

Taking into account the change of units, 21.8 in³ is equal to 0.357238 L.

<h3>Definition of rule of three</h3>

The rule of three is a way of solving problems of proportionality between three known values and an unknown value, establishing a relationship of proportionality between all of them.

If the relationship between the magnitudes is direct, that is, when one magnitude increases, so does the other (or when one magnitude decreases, so does the other) , the direct rule of three must be applied using the following formula, where a, b and c known data and x the variable to be calculated:

a ⇒ b

c ⇒ x

So: x= (c×b)÷ a

The direct rule of three is the rule applied in this case where there is a change of units.

<h3>in³ to liters</h3>

To perform in this case the conversion of units, you must first know that 1 in³ = 0.0163871 L. So, the rule of three can be used as follow: if 1 in³ is 0.0163871 L, 21.8 in³ equals how many L?

1 in³ ⇒ 0.0163871 L

21.8 in³ ⇒ x

So: x= (21.8 in³ ×0.0163871 L)÷ 1 in³

Solving:

<u><em>x= 0.357238 L</em></u>

In summary, 21.8 in³ is equal to 0.357238 L.

Learn more with this example:

brainly.com/question/12482948

#SPJ1

3 0
2 years ago
In a certain electrolysis experiment, 1.24 g of Ag were deposited in one cell (containing an aqueous AgNO3 solution), while 0.65
eduard

Answer:

The correct answer is 169.56 g/mol.

Explanation:

Based on the given information, the mass of Ag deposited is 1.24 g, and the mass of unknown metal X deposited in another cell is 0.650 g. The number of moles of electrons can be determined as,

= 1.24 g Ag * 1mol Ag/107.87 g/mol Ag * 1 mol electron/1 mol Ag ( the molecular mass of Ag is 107.87 g/mol)

= 0.0115 mole of electron

The half cell reaction for the metal X is,  

X^3+ (aq) + 3e- = X (s)

From the reaction, it came out that 3 faraday will reduce one mole of X^3+.  

The molar mass of X will be,  

= 0.650 g/0.0115 *3 mol electron/1 mol

= 56.52 * 3

= 169.56 g/mol

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3 years ago
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Masteriza [31]
The answer is D glad to help :)<span />
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