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masya89 [10]
3 years ago
12

Why do we not use molecular formulae for polymers?

Chemistry
1 answer:
Sveta_85 [38]3 years ago
3 0

Answer:

Polymers are long chain molecules that occur naturally in living things and can also be made by chemical processes in industry. Plastics are polymers, so polymers can be extremely useful.

Explanation:

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the specific heat of the metallic element rhodium is 0.240 j/g-k at 25°c. if 586 j of heat is added to an 80.0 g block of rhodiu
andrey2020 [161]

The expected final temperature of the block, given that 586 J of heat were added to it is 55.5 °C

<h3>How to determine the final temeprature</h3>

We'll begin by obtaining the change in the temperature of the block. This can be obtained as follow:

  • Specific heat capacity of block (C) = 0.240 J/gºC
  • Heat added (Q) = 586 J
  • Mass of block (M) = 80.0 g
  • Change in temperature (ΔT) =?

Q = MCΔT

Divide both sides by MC

ΔT = Q / MC

ΔT = 586 / (80.0 × 0.240)

ΔT = 586 / 19.2

ΔT = 30.5 °C

Finally, we shall determine the final temperature of the block. This can be obtained as follow:

  • Initial temperature (T₁) = 25 °C
  • Change in temperature (ΔT) = 30.5 °C
  • Final temperature (T₂) = ?

ΔT = T₂ – T₁

30.5 = T₂ – 25

Collect like terms

T₂ = 30.5 + 25

T₂ = 55.5 °C

Thus, from the calculation made above, we can conclude that the final temperature is 55.5 °C

Learn more about heat transfer:

brainly.com/question/14383794

#SPJ1

6 0
1 year ago
Which is the best reason for choosing the beaker for heating the solution?
Luba_88 [7]

It will not tip over a hot plate

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3 years ago
Cell membranes are selectively permeable. This means that A. only water can move freely across the cell membrane. B. any substan
MaRussiya [10]

Answer:

C. some substances can move freely across the cell membrane, while others must be transported.

Explanation:

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3 years ago
What is responsible for changes in the state of matter?
NeX [460]

Answer:

Temperature and pressure are the two factors which are responsible for change in state of matter.

Solid – In a solid, the attractive forces keep the particles together tightly enough so that the particles do not move past each other. ... In the solid the particles vibrate in place. Liquid – In a liquid, particles will flow or glide over one another, but stay toward the bottom of the container.

<em>Hope this helps, mark as Brainliest please...</em>

8 0
3 years ago
Which statement best explains the effect of the sestina structure in Elizabeth Bishop's "Sestina"?
IceJOKER [234]

Answer:

The sestira structure makes the poem feel like a playful puzzle, but aciels nothing to the meaning of the poem

The repetition of the last word in each line creates a reflective rhythm and tone in the poem while also making significant words

easily recognizable

Explanation:

That was a really good one, I think you may want to go with that answer.

8 0
3 years ago
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