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2 years ago

As you go down group one of the periodic table, the reactions become and more

Chemistry

1 answer:

Lady bird [3.3K]2 years ago

3 0

Answer:

vigorous

Explanation:

As you go down group one of the periodic table, the reactions become and more vigorous.

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Be sure to answer all parts. Consider the formation of ammonia in two experiments. (a) To a 1.00−L container at 727°C, 1.30 mol

Sonbull [250]

Answer: The value of $K_c$ for $2NH_3(g)\rightleftharpoons N_2(g)+3H_2(g)$ reaction is $5.13\times 10^2$

Explanation:

We are given:

Initial moles of nitrogen gas = 1.30 moles

Initial moles of hydrogen gas = 1.65 moles

Equilibrium moles of ammonia = 0.100 moles

Volume of the container = 1.00 L

For the given chemical equation:

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

Initial: 1.30 1.65

At eqllm: 1.30-x 1.65-3x 2x

Evaluating the value of 'x'

$\Rightarrow 2x=0.100\\\\\Rightarrow x=0.050mol$

The expression of $K_c$ for above equation follows:

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

Equilibrium moles of nitrogen gas = $(1.30-x)=(1.30-0.05)=1.25mol$

Equilibrium moles of hydrogen gas = $(1.65-x)=(1.65-0.05)=1.60mol$

Putting values in above expression, we get:

$K_c=\frac{(0.100)^2}{1.25\times (1.60)^3}\\\\K_c=1.95\times 10^{-3}$

Calculating the $K_c'$ for the given chemical equation:

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

$K_c'=\frac{1}{K_c}\\\\K_c'=\frac{1}{1.95\times 10^{-3}}=5.13\times 10^2$

Hence, the value of $K_c$ for $2NH_3(g)\rightleftharpoons N_2(g)+3H_2(g)$ reaction is $5.13\times 10^2$

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3 years ago

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Hemoglobin ___________. (Select all that apply).

alexandr1967 [171]

Answer:

Option B and A

Explanation:

First our lungs take purified oxygen from air then provide it to heart
Our heart gives oxygen to hemoglobin which is present in our blood
It carries oxygen to all cells
and comes back with cO_2

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1 year ago

NaCl and HCl both have chlorine but are different types of bonds.

Tema [17]

Answer:

In HCl ,bond between hydrogen and chlorine is covalent. But due to difference in electronegativity of hydrogen and chlorine,shared electron pair gets attracted towards chlorine. Due to this polar covalent

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3 years ago

In the nucleus of an Adam there are 18 protons and 20 neutrons what are the atomic number and mass number of this isotope

yKpoI14uk [10]

Atomic number = 18 (Number of protons)
Mass number = 18 + 20 (Number of protons + neutrons)

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3 years ago

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A bus traveled 280 kilometers between two cities . It left the first city at 3:00 p.m. and arrived at the second city at 7:00 p.

jeyben [28]

Answer:

70 kilometers per hour

Explanation:

280 kilometers ÷ 4 hours (7:00 pm - 3:00 pm = 4 hours) = 70 kilometers per hour

Hope this helps! Sorry if wrong. You are loved and you are beautiful/handsome!

-Bee

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