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3 years ago

The structure shown is an example of what kind of polymer? Question 10 options: A) Polyamine B) Polyester C) Polyalkane D) Nylon

Chemistry

1 answer:

aivan3 [116]3 years ago

6 0

Answer:

Examples of natural condensation polymers include cellulose, starch, and polypeptide chains of proteins. Several synthetic condensation polymers discussed include nylon, kevlar, polyester, Bakelite, Melamine, polycarbonates, polyurethanes, epoxies

Explanation:

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In order to expand agriculture and urban areas to meet increased demand for growing populations, water supplies often have to be

PSYCHO15rus [73]

Answer:

Decrease occur in the amount and flow of water bodies.

Explanation:

There is decrease in the amount and flow of water from water bodies such as rivers and lakes etc occur when the river is diverted from large water bodies because the water flows to the diverted sides and decrease occurs in the amount of water in the rivers and lakes. Those regions from where this river passes can also be negatively affected due to low amount of water they receives for their daily needs or for cultivation of crops so we can say that this diversion has adverse effect on other populations.

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3 years ago

The decrease in the quality of water caused by the discharge of solid or liquid waste into it is called water pollution true or

mafiozo [28]

Answer:

The answer to this is TRUE.

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3 years ago

Qué volumen ocupan 5 moles de un gas que se encuentran a 28°C y 3 atm de presión?

lys-0071 [83]

<em>What volume do 5 moles of a gas occupy at 28 ° C and 3 atm of pressure?</em>

<em />

<h3>Further explanation</h3>

In general, the gas equation can be written

$\large {\boxed {\bold {PV = nRT}}}$

where

P = pressure, atm

V = volume, liter

n = number of moles

R = gas constant = 0.08206 L.atm / mol K

T = temperature, Kelvin

n= 5 moles

T=28 +273=301 K

P=3 atm

The volume of the gas :

$\tt V=\dfrac{nRT}{P}\\\\V=\dfrac{5\times 0.082\times 301}{3}\\\\V=\boxed{\bold{41.136~L}}$

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3 years ago

Which chemical equation is a model of a decomposition reaction?

blagie [28]

A is a model of a decomposition reaction

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3 years ago

What type of reaction occurs in a hand warmer?<br> Exothermic<br> Endothermic

storchak [24]

Answer:

The reaction is exothermic.

Explanation:

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3 years ago