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satela [25.4K]
3 years ago
9

Select all the correct answers. Which substances are made up of polymers? DNA a glass bottle ice crystals the proteins in hair r

ubber car tires
Chemistry
1 answer:
____ [38]3 years ago
4 0

Answer:

DNA, the proteins in hair, rubber car tires.  

Step-by-step explanation:

<em>Polymers</em> are large molecules consisting of long chains of small repeating units.

DNA is a natural polymer that consists of hundreds of millions of repeating units called <em>nucleotides</em><em>.</em>

Hair protein consists of long chains of <em>amino acid</em> repeating units.

The rubber in car tires is a mixture of natural and synthetic rubber. Natural rubber consists of long chains of <em>isoprene repeating units</em>. In one type of synthetic rubber, the repeating units are <em>butadiene and styrene molecules</em>.

The <em>glass in a bottle</em> is not an organic polymer. However, some chemists consider it to be a highly cross-linked inorganic polymer of SiO₂.

<em>Ice crystals</em> are not even inorganic polymers, because the water molecules are held together only by hydrogen bonds, not covalent bonds.

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Explanation:

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Answer:

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Explanation:

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3 years ago
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si el calor fuese un fluido ¿en algun momento se agotaria después de que dos objetos se frotaran mutuamente?​
rjkz [21]

Si el calor fuese un fluido no se agotaría, solamente cambiaría su forma o localización.

<h3>¿Qué ocurre cuando dos objetos con diferente temperatura están en contacto?</h3>

Cuando dos objetos de diferente temperatura están en contacto el calor fluye del objeto con mayor temperatura o más caliente, al objeto con menor temperatura o más frío. Esto ocurre hasta que ambos objetos alcanzan la misma temperatura.

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El calor o energía termina se disipa hacia el entorno o la atmosfera cuando un cuerpo se enfría o hacia otro cuerpo si hay transferencia de calor, sin embargo, el calor no desaparece debido a la ley de la conservación de la energía y materia.

<h3>¿Qué sucedería si el calor fuera un fluido?</h3>

Si el calor fuera un fluido este fluido no desaparecería ni se agotaría, solamente se podría disipar a la atmósfera o ambiente.

Aprenda más sobre calor en: brainly.com/question/15890992

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As stated in the article, “As Sticky as a Gecko . . . but Ten Times Stronger!,” the adhesive the researchers developed sticks be
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