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iogann1982 [59]
2 years ago
15

Sigh.....................................

Chemistry
2 answers:
attashe74 [19]2 years ago
7 0

Answer:

That is a nice picture i love it plus if you need help just ask we can help :3

Explanation:

3241004551 [841]2 years ago
5 0

Answer:

what wrong

Explanation:

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For the reaction
Veronika [31]

I₂ (g) + Br₂ (g) ↔ 2IBr (g)

Given is Kc = 280 at 150 degree C.

Kc = [IBr]² / [I₂][Br₂]

Initially [IBr] = 0.45 / 2 = 0.225 M

The actual reaction is:

2IBr ↔ I₂ + Br₂, Kc = 1/280 = 0.00357142

In equilibrium,

[IBr] = 0.225 - 2x

[I₂] = x

[Br₂] = x

By substituting the values we get,

K = [I₂] [Br₂] / [IBr]²

0.00357142 = x×x / (0.225 - 2x)²

√(0.00357142) = x / (0.225 - 2x)

0.0597613 (0.225 - 2x) = x

0.01344 - 2 × 0.0597613x = x

(1 + 2 × 0.0597613)x = 0.01344

x = 0.01344 / (1+2 × 0.0597613)

x = 0.01344 / 1.1195226

x = 0.012005

Substituting the values we get,

IBr = 0.225 - 2 × 0.012005 = 0.17698 M

I₂ = x = 0.012005 M

Br₂ = 0.012005 M


8 0
3 years ago
Read 2 more answers
____ KOH + H3PO4 = K3PO4 + H20
sleet_krkn [62]

Answer:

3 KOH + H3PO4 ----> K3PO4 + 3H2O

Explanation:

Ensure the number of atoms on both sides are the same.

Left: 3K, 7O, 6H, 1P

Right: 3K, 7O, 6H, 1P

Hence, the equation is now balanced.

6 0
3 years ago
Which of the following pairs of elements would form the covalent bond with the largest dipole moment? View Available Hint(s) Whi
LekaFEV [45]

Answer:

In-F bond has the largest dipole moment.

Explanation:

Given the electronegativities:

Ge= 2.01

O= 3.44

H= 2.20

P= 2.19

In= 1.78

F= 3.98

B= 2.04

N= 3.04

The bond between Ge and O has an electronegativity difference:

ED= 3.44 - 2.01= 1.43

The bond between H and P has an electronegativity difference:

ED= 2.20 - 2.19= 0.01

The bond between In and F has an electronegativity difference:

ED= 3.98 - 1.78= 2.20

The bond between B and N has an electronegativity difference:

ED= 3.04 - 2.04= 1.00

As In-F bond has the largest electronegativity difference, this is the covalent bond with the largest dipole moment.

6 0
2 years ago
25 L of a gas is collected at 115 kPa. If the pressure increases to 300 kPa, what is the new volume?
Lina20 [59]

Answer:

V2 = 9.58 Litres.

Explanation:

Given the following data;

Initial volume = 25 L

Initial pressure = 115 kPa

Final pressure = 300 kPa

To find the new volume V2, we would use Boyles' law.

Boyles states that when the temperature of an ideal gas is kept constant, the pressure of the gas is inversely proportional to the volume occupied by the gas.

Mathematically, Boyles law is given by;

PV = K

P_{1}V_{1} = P_{2}V_{2}

Substituting into the equation, we have;

115 * 25 = 300*V_{2}

2875 = 300*V_{2}

V_{2} = \frac {2875}{300}

V_{2} = 9.58

V2 = 9.58 L

Therefore, the new volume is 9.58 litres.

5 0
2 years ago
Humans could try to pollinate food crops by hand, but this would be expensive and time consuming. Natural pollinators, like bees
malfutka [58]

B. Regulating Services

Explanation:

Pollination is an example of regulating ecosystem service.

  • Ecosystem services are the direct and indirect contribution to human life.
  • Humans relies on the ecosystem for a wide range of provisions.
  • These services are categorized into different forms.
  • Regulating services are the values derived from controlling the ecosystem.
  • Pollination is one of such things.
  • Plants are pollinated by insects. This helps to continue and sustain life.
  • Pollination helps to fertilize plants and ensures reproduction.

learn more:

Ecosystem brainly.com/question/7846024

#learnwithBrainly

3 0
3 years ago
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