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3 years ago

What is a medium?

Chemistry

2 answers:

brilliants [131]3 years ago

4 0

Answer:

The correct answer is option A.

Explanation:

Medium is defined as a thing by which or through which some thing is done to convey ideas and, to communicate clearly or to connect with others.

For example : We communicate through speaking and writings, Here both writing and speaking are the mediums.

Form the given options the correct definition with an agreement with above description of word'medium is option A.

jasenka [17]3 years ago

3 0

Mediums are tools used to convey ideas or information. I think. Brainliest Answer please.

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For the reaction, 2SO2(g) + O2(g) <--> 2SO3(g), at 450.0 K the equilibrium constant, Kc, has a value of 4.62. A system wa

Nady [450]

Answer:

To the left.

Explanation:

Step 1: Write the balanced reaction at equilibrium

2 SO₂(g) + O₂(g) ⇄ 2 SO₃(g)

Step 2: Calculate the reaction quotient (Qc)

Qc = [SO₃]² / [SO₂]² × [O₂]

Qc = 0.254² / 0.500² × 0.00855

Qc = 30.2

Step 3: Determine in which direction will proceed the system

Since Qc > Kc, the system will shift to the left to attain the equilibrium.

4 0

3 years ago

How many moles of SO2 are required to produce 0.45 mole CS2?

Kaylis [27]

Answer: The moles of carbon needed will be, 13.8 moles

Explanation: Moles of = 5.52 mole

Now we have to calculate to moles of carbon.

The given balanced chemical reaction is,

From the balanced chemical reaction, we conclude that

As, 2 mole of react to give 5 moles of carbon

So, 5.52 mole of react to give moles of carbon

Therefore, the moles of carbon needed will be, 13.8 moles

4 0

4 years ago

Read 2 more answers

Lastly, Snape thinks we should try one more calculation.

EleoNora [17]

Answer:

E) 0.90

Explanation:

In TLC (Thin-Layer-Chromatography) retention factor RF is defined as the ratio between distance of the sample and the solvent front. RF is very important in chemistry to know the composition of any sample by comparison.

In the problem, as the sample has a distance of 0,20cm from the solvent front, the distance of the sample is:

2,0cm - 0,20 cm =<em> 1,8 cm</em>. Thus, RF is:

RF = 1,8cm / 2,0cm = 0,90

<em>E) 0,90</em>

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I hope it helps!

3 0

3 years ago

What gas makes up close to 1/4 of the air surronding the earth?

Olegator [25]

The answer is hydrogen. the first element in the periodic table.

4 0

3 years ago

Read 2 more answers

Determine the empirical formula of a compound containing 40. 6 grams of carbon, 5. 1 grams of hydrogen, and 54. 2 grams of oxyge

zavuch27 [327]

The empirical formula is C₂H₃O₂

<h3>What is Empirical formula of a compound ?</h3>

The empirical formula is the simplest whole number ratio of elements present in a compound.

The total molar mass of the compound is 118.084 g/mol.

mass of Carbon present = 40.6

mass of Hydrogen present = 5.1 grams

mass of Oxygen present = 2 grams

Moles of C = 40.6/12 = 3.38

Moles of H = 5.1/1.008 = 5

Moles of Oxygen = 54.2/15.999 = 3.38

Ratio of Moles of C to Oxygen is 1 : 1

Ratio of Moles of C to H is 1/1.5

Multiplying each mole fraction by 2

The empirical formula is C₂H₃O₂

To know more about Empirical Formula

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5 0

2 years ago