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tigry1 [53]
4 years ago
11

Which substance is not a heterogeneous mixture ?

Chemistry
1 answer:
Burka [1]4 years ago
4 0

D. Cooking oil

because it is homogeneous

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A reaction has a standard free-energy change of –10.90 kj mol–1 (–2.605 kcal mol–1). Calculate the equilibrium constant for the
Zarrin [17]

The relation between free energy change and equilibrium constant is

ΔG = -RT ln Keq

T = 298 K

R = 8.314 J / mol K

Keq = ?

ΔG = -10.90 kJ / mole

ΔG = -  8.314 X 298 X ln Keq

ln Keq = 10900 / 8.314 X 298 = 4.4

Keq = 81.45

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Vadim26 [7]
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3 0
3 years ago
HALP
balu736 [363]

1

Explanation:

This problem deals with balancing of chemical equations.

   Every chemical equations obey the law of conservation of matter which states that "in chemical reactions, matter is usually conserved and are not produced, they are simply recombined".

  Equation of reaction:

      BaO₂   +   H₂SO₄  ⇒  H₂O₂  +  BaSO₄

Let us use a mathematical approach to balance this equation by setting up simple algebraic equations:

        aBaO₂   +   bH₂SO₄  ⇒  cH₂O₂  +  dBaSO₄

a, b, c and d are the number of moles that will balance the equation;

 Conserving Ba:   a = d

                       O:   2a + 4b = 2c + 4d

                        H:    2b = 2c

                         S:    b  = d

now let a = 1

              d = 1

               b = 1

                c  = 1

we see that the equation is already balanced

learn more:

Balanced equation brainly.com/question/5297242

#learnwithBrainly

3 0
3 years ago
Read 2 more answers
What is the atomicity of ozone
faltersainse [42]

Answer:

Explanation:

Atomicity of an element is a measure of the total number of atoms present in a molecule. For example- O2 , O Similarly, an ozone molecule consists of 3 atoms of oxygen and has an atomicity of 3. The atomicity of ammonia is NH3.Ammonia is a compound of nitrogen and hydrogen with the formula NH3.

(Could very much be incorrect, it's just what I think it is.)

8 0
4 years ago
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