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Strike441 [17]
2 years ago
6

Due to its low-density styrofoam isn't economically feasible to recycle and is becoming a widespread pollutant. Styrofoam is pol

ymerized from which starting molecule?
A. Septane

B. Ethylene

C. Styrene

D. Acetylene

PLS HELP THANK YOU!!!
Chemistry
2 answers:
irina [24]2 years ago
6 0
The answer is styrene
Gemiola [76]2 years ago
4 0

Answer: Polystyrene (PS) is a polymer made from the monomer styrene, a liquid hydrocarbon that is commercially manufactured from petroleum.

Explanation:

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Heat is added to a chemical system. Which energy will increase?
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Answer:

the kinetic energy of the reactant molecules(C)

Explanation: i hope this is the correct answer if this is wrong or incorrect please let me know

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2 years ago
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A student prepares a weak acid solution by dissolving 0.2000 g HZ to give 100. mL solution. The titration requires 33.5 mL of 0.
nexus9112 [7]

Answer:

a)M=0.20/(0.335*0.1025)= 0.20/ 0.034 = 5.88 g/mol

b) if 0.100g is used instead of 0.200g

M = 0.1 / 0.034 = 2.94  hence the molar mass will be too low

Explanation:

0.2000 gHZ gives  100ml acid solution

33.5 ml of 0.1025 M NaOH  is required to prepare it

the moles = mass / molar mass

mass = 0.200 gHZ

moles = 0.0335*100 * 0.1025 = 0.034

therefore molar mass = mass / moles

                                  M=0.20/(0.335*0.1025)= 0.20/ 0.034 = 5.88

if 0.100g is used instead of 0.200g

M = 0.1 / 0.034 = 2.94  hence the molar mass will be too low

3 0
3 years ago
How is the information about cats found in myths and fairy tales and legends different from information gathered through science
forsale [732]
Scirnce uses a method of testing to declare rules or facts. myth and fairy tales have no way of being tested. cats are a physical creature we can see, test, and observe. a mythical idea canny be tested. for example: mermaids cannot be tested as we have none to observe.
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Is h3co3 a strong base
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I read and said it's a weak base
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Ways to manage non-biodegradable waste​
Lisa [10]

Answer:

The following are some ways of safely disposing of non-biodegradable waste.

1. Take them to a local recycling facility. Separate metal, plastic, glass, and other non-biodegradable waste and store them ready for recycling.

2. Combustion and energy recovery.

3. Disposal at sanitary facilities.

4. Reduce.

5. Landfills.

Explanation: Hope it helps! ^_^"

(G00gle)

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