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Leviafan [203]
3 years ago
6

“ As temperature increases, energy increases, and the speed of the molecules _______________ .”

Chemistry
2 answers:
iogann1982 [59]3 years ago
7 0

Answer:

If the temperature is increased, the average speed and kinetic energy of the gas molecules increase.

Explanation:

enot [183]3 years ago
6 0

Answer:

kinetic energy

If the temperature is increased, the average speed and kinetic energy of the gas molecules increase. If the volume is held constant, the increased speed of the gas molecules results in more frequent and more forceful collisions with the walls of the container, therefore increasing the pressure

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Coal is layered because it is a type of sedimentary rock

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A student makes a sandwich with several layers of bread and cheese. Then the student cuts the sandwich and says it models how a
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Rock layer and sandwich layer is almost the same.

Why are rock layers are like sandwiches?

This geologic structure is called an anticline. Now gently bend your sandwich so that the layers are bowed downwards, thus creating a syncline. The presence of anticlines and synclines indicate strong forces that often form mountain ranges.

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I NEED YALLS HELP ILL BRAINLIST/5 Star !! Answer in full sentence if u can.
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The maximum number of electrons that the second shell can contain is 8 electrons.
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3 years ago
A compound has a percent composition of 81.71% C and 18.29% H. What is the empirical formula of this compound?
SCORPION-xisa [38]

Considering the definition of empirical formula, the empirical formula is C₃H₈.

<h3>Definition of empirical formula</h3>

The empirical formula is the simplest expression to represent a chemical compound, which indicates the elements that are present and the minimum proportion in whole numbers that exist between its atoms, that is, the subscripts of chemical formulas are reduced to the most integers. small as possible.

<h3>Empirical formula in this case</h3>

In this case, in first place you know the percent composition:

  • C: 81.71 %
  • H: 18.29%

Assuming a 100 grams sample, the percentages match the grams in the sample. So you have 81.71 grams of carbon and 18.29 grams of hydrogen H.

Then it is possible to calculate the number of moles of each atom in the molecule, taking into account the corresponding molar mass:

  • C: \frac{81.71 grams}{12\frac{grams}{mole} }= 6.81 moles
  • H:\frac{18.29 grams}{1\frac{grams}{mole} }= 18.29 moles

The empirical formula must be expressed using whole number relationships, for this the numbers of moles are divided by the smallest result of those obtained. In this case:

  • C: \frac{6.81 moles}{6.81 moles}= 1
  • H:\frac{18.29 moles}{6.81 moles}= 2.68 ≅ \frac{8}{3}

To express this relationship in the form of simple integers, it is necessary to multiply by a simple number to achieve this:

  • C: 1×3  =3
  • H:≅ \frac{8}{3}×3= 8

Therefore the C: H mole ratio is 3: 8

Finally, the empirical formula is C₃H₈.

Learn more about empirical formula:

brainly.com/question/21081934

brainly.com/question/5115389

brainly.com/question/4594902

brainly.com/question/13725914

brainly.com/question/13599051

brainly.com/question/13112542

#SPJ1

4 0
2 years ago
Which two structures play direct roles in permitting bacteria to adhere to each other or to other surfaces?
ICE Princess25 [194]

Answer: capsule and fimbriae

Explanation:

Many prokaryotes have sticky outermost layer called the capsule.It is made up of polysaccharides and it helps them clinging to each other or to other surfaces around them.It also helps prevent the cell from drying out.

Fimbriae,also known as attachment pilus,used by bacteria to adhere to one and other,animal cells or to any inanimate objects.

4 0
3 years ago
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