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3 years ago

What determines the reactivity of an akali metal?

Chemistry

1 answer:

sergij07 [2.7K]3 years ago

7 0

Answer:

The number of valence electrons determines an element's reactivity, or how likely the element is to react with other elements.

Explanation:

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The graph represents the heating of water in a pot. At 150 seconds, the water has just reached a boil. If the heat is left on, w

navik [9.2K]

Temperature will raise and water will evaporate

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3 years ago

Electrochemistry - Equilibrium

Ipatiy [6.2K]

Answer:

Explanation:

The relation between equilibrium constant and Ecell is given below .

E⁰cell = (RT / nF ) lnK , F is faraday constant T is 273 + 25 = 298 K

E⁰cell = 1.46 - 1.21 = .25 V

n = 2

Putting the values

.25 = (8.314 x 298 lnK) / (2 x 96485 )

lnK = 19.47

K = 2.85 x 10⁸

2 )

Change in free energy Δ G

Δ G ⁰ = nE⁰ F

n = 4

E⁰ = .4 + .83 = 1.23 V

Δ G ⁰= 4 x 1.23 x 96485

= 474706 J / mol

3 )

E⁰cell = (RT / nF ) lnK

n = 2

1.78 = 8.314 x 298 lnK / 2 x 96485

lnK = 138.638

K = 1.62 x 10⁶⁰

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3 years ago

What would happen if there no decomposers

AleksAgata [21]

Producers would not have enough nutrients .

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3 years ago

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How many moles of C3H8 will be produced from 75 moles of CO2?C3H8 + 5 O2 → 3 CO2 + 4 H2O

levacccp [35]

25 moles of C3H8 will be produced from 75 moles of CO2.

<h3>Mole calculation</h3>

To find the value of moles of a product from the number of moles of a reactant, it is necessary to observe the stoichiometric ratio between them:

$C_3H_8 + 5 O_2 = > 3 CO_2 + 4 H_2O$

Analyzing the reaction, it is possible to see that the stoichiometric ratio is 1:3, so we can perform the following expression:

C3H8 CO2

$\frac{1mol}{xmol} =\frac{3mol}{75mol}$

$x = 25mol$

So, 25 moles of C3H8 will be produced from 75 moles of CO2.

Learn, more about mole calculation in: brainly.com/question/2845237

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2 years ago

What is the net ionic equation for Mg(OH)2 + HCl > MgCl2 + H2O?

Anna35 [415]

Mg^2+ + 2Cl^- -> MgCl2

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3 years ago