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OLEGan [10]
3 years ago
15

Given the unbalanced equation: N2(g) + H2(g) → NH3(g)

Chemistry
1 answer:
mario62 [17]3 years ago
3 0

Answer:

                   Option-4 (3:2) is the correct answer.

Explanation:

Following steps are taken to balance the given unbalanced chemical equation.

Step 1: Write the unbalanced chemical equation,

                         N₂ +  H₂ →  NH₃

Step 2: Balance Nitrogen Atoms;

There are 2 nitrogen atoms on left hand side and 1 nitrogen atoms on right hand site therefore, to balance them multiply NH₃ on right hand side by 2 i.e.

                         N₂ +  H₂ →  2 NH₃

Step 3: Balance Hydrogen Atoms;

Now, there are 2 hydrogen atoms on left hand side and 6 hydrogen atom on right hand site therefore, to balance them multiply H₂ on left hand side by 3 i.e.

                         N₂ +  3 H₂ →  2 NH₃

Now, the equation is balanced.

Step 4: Finding out mole ratios:

From balanced chemical equation it can be concluded that 3 moles of H₂ are involved in producing 2 moles of NH₃ hence, the mole ratio of consumption of H₂ to production of NH₃ is 3:2.

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A lake has been infected by some type of new algae that is unknown. Every single day the amount of surface area that the algae t
FrozenT [24]

Answer:

It takes 86 days take to cover half of the lake

Explanation:

In the day #1, the amount of the algae is X,

In the day #2 is 2X

In the day #3 is 2*2*X = X*2²

...

In the day #n the amount of the algae is X*2^(n-1)

Assuming X = 1m³. In the day 87, the area infected was:

1m³*2^(87-1)

7.74x10²⁵m³ is the total area of the lake

the half of this amount is 3.87x10²⁵m³

The time transcurred is:

3.87x10²⁵m³ = 1m³*2^(n-1)

Multiplying for 5 in each side:

ln (3.87x10²⁵) = ln (2^(n-1))

58.9175 = n-1 * 0.6931

85 = n-1

86 = n

<h3>It takes 86 days take to cover half of the lake</h3>

4 0
3 years ago
Can someone help me with this?
Doss [256]
He was involved in the mapping of venus and mars  
5 0
3 years ago
A decomposition occurs when you open a can or bottle of soda. Carbonic acid. H.CO, is in carbonated beverages. It
Rina8888 [55]

Answer:

H₂CO₃→H₂O + CO₂

Exphlanation:

Soda is carbonated water. It contains carbon dioxide dissolved in water , which is carbonic acid. On opening the soda, the carbonic acid undergoes the reverse reaction and releases carbon dioxide in the air . The soda is thus left with just water and loses it's fizz.

3 0
3 years ago
Which element is closely associated with the field of organic chemistry?
slega [8]

Answer:

Carbon

Explanation:

The field of organic chemistry is the field  of the study of the compounds of carbon mostly with hydrogen but they  can contain the presence of other atoms such as oxygen, nitrogen, sulfur even metals such as lithium. It studies the structure, properties, synthesis and reactions of these compounds. The field of organic chemistry is the field of living organisms as they are mostly are formed by organic compounds hence its name organic.

4 0
3 years ago
Consider the following hypothetical aqueous reaction. A flask is charged with .065 mol of A in a total volume of 100.0 mL. The f
Inga [223]

Answer: 0.422 M⁻¹s⁻¹

Explanation: <u>Reaction</u> <u>Rate</u> is the speed of decomposition of the reactant(s) per unit of time.

A <u>Rate</u> <u>Law</u> relates concentration of reactants, rate reaction and rate constant:

r=k[A]^{x}[B]^{y}

where

[A] and [B] are reactants concentration

x and y are reaction order, not related to the stoichiometric coefficients

k is rate constant

r is rate

Before calculating rate constant, first we have to determine reaction order.

In this question, the reactio order is 2. So, the rate law for it is

-\frac{d[A]}{dt} =k[A]^{2}

and the integrated formula is

\frac{1}{[A]} =\frac{1}{[A]_{0}} +kt

in which

[A]₀ is initial concentration of reactant

Then, using initial concentration at initial time and final concentration at final time:

\frac{1}{0.031} =\frac{1}{0.065} +k(40)

40k=\frac{1}{0.031}-\frac{1}{0.065}

40k=32.26-15.38

k = 0.422

The rate constant for the reaction is 0.422 M⁻¹.s⁻¹

3 0
3 years ago
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