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2 years ago

Increasing technology addiction among the youth write a letter to editor

Chemistry

1 answer:

ruslelena [56]2 years ago

6 0

Answer:

these two would help you

Explanation:

have a good day ᕕ( ᐛ )ᕗ

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What was the 'elixir of life'

4vir4ik [10]

A magical or medicinal potion/solution

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3 years ago

I need to measure the width of mt MP3 player what unit should i use

podryga [215]

To measure and determine the width of an MP3 player, it would be best to measure units of centimetres, cm. As this would be appropriate.

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4 years ago

At a certain temperature, 0.3411 0.3411 mol of N 2 N2 and 1.661 1.661 mol of H 2 H2 are placed in a 2.50 2.50 L container. N 2 (

Sveta_85 [38]

Answer: The equilibrium constant for the above reaction is 1.31

Explanation:

We are given:

Initial moles of nitrogen gas = 0.3411 moles

Initial moles of hydrogen gas = 1.661 moles

Equilibrium moles of nitrogen gas = 0.2001 moles

For the given chemical reaction:

$N_2(g)+3H_2(g)\rightleftharpoons 2NH_3(g)$

Initial: 0.3411 1.661

At eqllm: 0.3411-x 1.661-3x 2x

Evaluating for 'x', we get:

$\Rightarrow (0.3411-x)=0.2001\\\\\Rightarrow x=0.3411-0.2001=0.141$

Volume of the container = 2.50 L

The expression of $K_c$ for the above equation follows:

$K_c=\frac{[NH_3]^2}{[N_2]\times [H_2]^3}$

We are given:

$[NH_3]=\frac{2\times 0.141}{2.50}=0.1128M$

$[N_2]=\frac{0.2001}{2.5}=0.08004M$

$[H_2]=\frac{1.661-(3\times 0.141)}{2.5}=0.4952M$

Putting values in above expression, we get:

$K_c=\frac{(0.1128)^2}{0.08004\times (0.4952)^3}\\\\K_c=1.31$

Hence, the equilibrium constant for the above reaction is 1.31

5 0

3 years ago

KCIO3(s) → KCl(s) + O2(g) in word equation

vodomira [7]

What? I can’t understand

4 0

3 years ago

Which statement related to particle and wave properties of matter is correct? a. Interference patterns are observed when a wave

DerKrebs [107]

Answer:

a. Interference patterns are observed when a wave passes through a barrier with two slits

Explanation:

Interference is a situation where two waves superimpose to form a new wave of a different amplitude. This amplitude can be greater, same or lower.

the diagram attached below shows the movement of a wave through a barrier with two slits.

you can notice the portions of the wave that overlap. This overlapping of waves is the interference.

Thus, option A is correct.

The other options however, are not correct. as shown below:

Option B is wrong as waves exhibit diffraction (it is diffraction of the light wave that produces the rainbows we see in the sky)

Option C is wrong as waves do not travel straight through slits always.

Option D is wrong as waves can also interfere constructively and destructively.

7 0

4 years ago