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Mamont248 [21]
3 years ago
12

Which describes a feature of synthetic polymers? They can be naturally decomposed. They can be cheaply recycled. They can only b

e made in small quantities. They can be produced at a low cost.
Chemistry
2 answers:
Igoryamba3 years ago
7 0

Answer:

The correct option is;

They can be produced at low cost

Explanation:

In comparison to several other manufacturing materials, some synthetic polymers such as plastics are more durable cost effective, flexible, faster to produce and  reliable

With regards to the cost comparison, the resins used for plastic are cheaper to obtain than mining for materials such as metals. In all quantities, it is cheaper to produce and manufacture plastics than to produce metals.

Due to the light weight and corrosion resistance of plastics, it is cheaper to store and transport plastics to several locations with different environment without the plastic requiring much effort for transportation or being affected by corrosion.

marusya05 [52]3 years ago
6 0

Answer:

They can be produced at low cost

Explanation:

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The following reaction produces ethanoic acid (CHACOOH) from methanol (CH3OH) and carbon
tigry1 [53]

Answer:

\boxed{\text{300 g}}

Explanation:

We will need a balanced chemical equation with masses and molar masses, so, let's gather all the information in one place.

M_r:         32                          60

           CH₃OH + CO ⟶ CH₃COOH

m/g:        160

(a) Moles of CH₃OH

\text{Moles of CH$_{3}$OH} = \text{160 g CH$_{3}$OH }\times \dfrac{\text{1 mol CH$_{3}$OH }}{\text{32 g CH$_{3}$OH}}= \text{5.00 mol CH$_{3}$OH}

(b) Moles of CH₃COOH

\text{Moles of CH$_{3}$COOH} = \text{5.00 mol CH$_{3}$OH } \times \dfrac{\text{1 mol CH$_{3}$COOH}}{\text{1 mol CH$_{3}$OH }} = \text{5.00 mol CH$_{3}$COOH}

(c) Mass of CH₃COOH

\text{Mass of CH$_{3}$COOH} =\text{5.00 mol CH$_{3}$COOH} \times \dfrac{\text{60 g CH$_{3}$COOH}}{\text{1 mol CH$_{3}$COOH}} = \textbf{300 g CH$_{3}$COOH}\\\\\text{The maximum mass of ethanoic acid that can be produced is $\boxed{\textbf{300 g}}$}

3 0
3 years ago
Please help with 3 and 4
mafiozo [28]
3. volume of gas because its changing because of the temperature
4. 67.6 breaths per minute
     65+73+67+71+62=338/5=67.6
                                           ^because there are five terms that we added
7 0
3 years ago
A pH scale reading 13 indicates a ______
lukranit [14]

Answer:

A pH scale reading 13 indicates a strong base.

Explanation:

From my understanding:

1 -4 is a strong acid

4 - 7 is weak acid

7 - 9 is a weak base

9 - 14 is a strong base

6 0
2 years ago
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The stream table shows the time needed for water to soak into the playfield soil.
Sloan [31]

Answer:

TRUE

Explanation:

plz brian list

4 0
3 years ago
If the last three animals of a species are all females, what will happen to the species?
Tcecarenko [31]

Answer:

B

Explanation:

5 0
3 years ago
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