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3 years ago

Which statement below best describes kinetic energy?

Chemistry

1 answer:

NISA [10]3 years ago

6 0

Option B: Kinetic Energy is the energy that exists because something is moving.

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At 25°C, the equilibrium constant Kc for the reaction in thesolvent CCl4 2BrCl <----> Br2 + Cl2 is 0.141. If the initial c

ivolga24 [154]

Answer: The equilibrium concentration of bromine gas is 0.00135 M

Explanation:

We are given:

Initial concentration of chlorine gas = 0.0300 M

Initial concentration of bromine monochlorine = 0.0200 M

For the given chemical equation:

$2BrCl\rightleftharpoons Br_2+Cl_2$

Initial: 0.02 0.03

At eqllm: 0.02-2x x 0.03+x

The expression of $K_c$ for above equation follows:

$K_c=\frac{[Br_2]\times [Cl_2]}{[BrCl]^2}$

We are given:

$K_c=0.141$

Putting values in above equation, we get:

$0.141=\frac{x\times (0.03+x)}{(0.02-2x)^2}\\\\x=-0.96,+0.00135$

Neglecting the value of x = -0.96 because, concentration cannot be negative

So, equilibrium concentration of bromine gas = x = 0.00135 M

Hence, the equilibrium concentration of bromine gas is 0.00135 M

8 0

3 years ago

Which of the following pH numbers are basic? (Choose 2) 11 5 7 9

timama [110]

Answer:

7 is the only basic number on a pH scale

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3 years ago

Definition of steepest

andrey2020 [161]

Hi, friend.
Steepest - Being steep to the greatest degree.
Steep - Sharply angled.
Example: When hiking trails lead straight up mountainsides, they've got a steep incline.
Hope this helps!

5 0

3 years ago

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Write the chemical symbols for three different atomic cations that all have 14 protons

yuradex [85]

The symbols for three different cations with 14 protons are Si²⁺, Si⁴⁺, and Si³⁺.

An element with 14 protons must be silicon, Si.

Its electron configuration is [Ne] 3s²3p², so it could lose up to four valence electrons.

The most likely cations are Si²⁺, Si⁴⁺, and Si³⁺ (or Si⁺).

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4 years ago

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A distance of one centimeter is the same as 100 m 10 m .01 m 1000 m

katovenus [111]

0.01m
...................

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3 years ago

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