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attashe74 [19]
3 years ago
9

Which of the following statements is true?

Chemistry
1 answer:
Brut [27]3 years ago
6 0
Generally in science and the natural world, when you break big things down into more pieces you increase disorder. In the natural universe the second law of thermodynamics tells us that disorder is increased in a closed system.  I would say c. fission releases more energy than fusion. because bringing things together requires work and consumes energy. breaking things apart releases energy.
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What is the coefficient of the acid that produces AlCl3 in the reaction mixing Al(OH)3 and HCl after the equation has been balan
kramer

Answer:

3.

Explanation:

  • Al(OH)₃ reacts with HCl to produce AlCl₃ and water according to the balanced equation:

<em>Al(OH)₃ + 3 HCl → AlCl₃ + 3H₂O,</em>

<em></em>

<em>It is clear that 1.0 mole of Al(OH)₃ reacts with 3.0 mole of HCl to produce 1.0 mole of AlCl₃ and 3.0 moles of H₂O,</em>

<em />

<em>So, the coefficient of HCl is 3.</em>

<em></em>

3 0
3 years ago
How many liters of oxygen gas, at STP, are produced by the decomposition of 0.605 moles of potassium chlorate? 2KClO3 ➞ 2KCl + 3
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Answer:

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6 0
3 years ago
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saveliy_v [14]

Answer:

The correct answer is A. Barium Chloride

Explanation:

3 0
4 years ago
Which functional group does the molecule below contain?<br> HIC H<br> H=COH<br> [
katrin2010 [14]

Answer:

D. \ \ \ \text{hydroxyl}

Explanation:

Alcohols are organic compounds that are composed of the hydroxyl function group (-\text{OH}), bonded to a carbon atom of an alkyl or a substituted alkyl group. Hence, the functional group of alcohols is the hydroxyl group (-\text{OH}).

According to the International Union of Pure and Applied Chemistry (IUPAC) nomenclature, alcohols are named by changing the -<em>e</em> ending of the name of the parent alkane to the suffix <em>-</em><em>ol</em>.

For example, the alcohol molecule in the figure demonstrates a hydroxyl group bonded to a methyl group. Therefore, the name of the alcohol is methanol.

6 0
2 years ago
Cuando un gas que se encuentra a 20°c se calienta hasta los 40°c sin que varie su presion, su volumen se duplica
kati45 [8]

Answer:

Not doubled

Explanation:

The equation below represent the ideal gases relationship

PV ÷ T = constant

Here

P denotes pressure,

V denotes volume,

T denotes temperature in degrees Kelvin

Now

20 ° c = 273 + 20

= 293 K

And,

40 ° c = 313 K

So,

V = Vo. 313 K ÷  293 K = 1.07 Vo

So,  the volume is NOT doubled.

In the case when the temperature would be determined in degrees celsius at 0 degrees so the volume would be zero

4 0
3 years ago
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