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Liula [17]
3 years ago
11

Why is Mg++ smaller than Mg atom?​

Chemistry
2 answers:
Evgen [1.6K]3 years ago
7 0

Answer:

The magnesium ion is much smaller than the magnesium atom because magnesium atom contains more electrons as compared to magnesium ion. Explanation: ... Whereas when an atom tends to lose an electron then it acquires a positive charge and size of the atom tends to increase.

Rzqust [24]3 years ago
4 0

Answer:

Because it looses it two electrons to form a stable octet Ionic form..........

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A chemist wants to find Kc for the following reaction at 709 K:2NH3(g) + 3 I2 (g) ----> 6HI(g) + N2(g)
irakobra [83]

Answer:

422455.41

Explanation:

Corrected from source,

Given that:-

N2(g) + 3 H2(g)\rightarrow 2NH3(g) \ Kc_1 = 0.314

The equilibrium constant for the reverse reaction will be the reciprocal of the initial reaction.

The value of equilibrium constant the reaction

2NH3(g)\rightarrow N2(g) + 3 H2(g)

is:

Kc_{1}'=\frac{1}{0.314}

H2(g) + I2(g)\rightarrow 2 HI(g)\  Kc_2 = 51

If the equation is multiplied by a factor of '3', the equilibrium constant of the reverse reaction will be the cube of the equilibrium constant  of initial reaction.

The value of equilibrium constant the reaction

3H2(g) + 3I2(g)\rightarrow 6 HI(g)

is:

Kc_{2}'={51}^3

Adding both the reactions we get the final reaction. So, the equilibrium constants must be multiplied.

The value of equilibrium constant the reaction

2NH3(g) + 3I2(g)\rightarrow 6 HI(g) + N2(g)

is:

Kc'=\frac{1}{0.314}\times {51}^3  = 422455.41

3 0
3 years ago
A (what) forms when the sperm first fertilizes an egg
Arlecino [84]
Fertilization occurs when the nucleus of both a sperm and egg fuse to form a diploid cell known as zygote the successful fusion of gametes forms a new organization
7 0
3 years ago
Why is a solution not a pure substance?
Kaylis [27]

A solution is not a pure substance as it is a mixture between a solute and a solvent.

Pure substances are substances that are made up of only type of particles and have a fixed structure. In pure substances the matter cannot be separated into other kinds of matter by any physical means.

A homogenous mixture of two or more substances in relative amounts that can be varied continuously up to what is called the limit of solubility. The term solution is commonly applied to the liquid state of matter, but solutions of gases and solids are possible.

A solution cannot be a pure substance because it is made up of a homogenous mixture of solute and a solvent. Homogenous means the matter cannot be separated out and therefore a solution cannot be a pure substance.

To know more about pure substances

brainly.com/question/2117938

#SPJ1

5 0
1 year ago
When's the moon at its brightest? (QUICK!)
erastovalidia [21]

Answer:

around march

Explanation:

5 0
3 years ago
Read 2 more answers
The amount of stored chemical energy is what determines the temperature of a substance.
Orlov [11]

Answer:

False

Explanation:

Temperature is also heat energy, so chemical energy has no affect over it.

3 0
3 years ago
Read 2 more answers
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