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Serga [27]
3 years ago
8

What is polyethylene??defination​

Chemistry
2 answers:
rewona [7]3 years ago
8 0

Answer:

a tough, light, flexible synthetic resin made by polymerizing ethylene, chiefly used for plastic bags, food containers, and other packaging.

Explanation:

Leya [2.2K]3 years ago
4 0

Answer: Medical Definition Of Polyethylene: A Polymer Of Ethylene Especially: Any Of Various Lightweight Thermoplastics That Are Resistant To Chemicals And Moisture And Are Used Especially In Packaging.

<em>BRAINLIEST PLEASE!!!!!!!!</em>

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Someone help me please
crimeas [40]

<u>Examples of energy</u>: Heat, Electrical, Mechanical, Nuclear, Chemical, Kinetic and Potential.

<u>Non-Examples of energy</u>: Ideas, matter, water, paper, people and coffee.

6 0
3 years ago
Read 2 more answers
A 642 mL sample of oxygen gas at 23.5°C and 795 mm Hg, is heated to 31.7°C and the volume of the gas expands to 957 mL. What is
Ratling [72]
We can use the combined gas law equation to find the new pressure of the gas. 
\frac{P1V1}{T1} =  \frac{P2V2}{T2}
where P - pressure 
V - volume
T - temperature 
parameters for the first instance are on the left side and parameters for the second instance are on the right side of the equation 
P1 - 795 mm Hg x 0.0013 atm/ mm Hg = 1.033 atm
T1 - 23.5 °C + 273 = 296.5 K
T2 - 31.7 °C + 273 = 304.7 K
substituting the values in the equation 
\frac{1.033 atm *642 mL}{296.5K}=   \frac{P*957mL}{304.7K}
P = 0.712 atm 
the answer closest to this value is A) 0.723 atm
therefore answer is 
<span>A) 0.723 atm</span>
8 0
4 years ago
Alexis walked 1.5 km to her house in 0.5 hours. What is Alexis’ speed?
atroni [7]

Answer:

3km/h

Explanation:

Speed equal to distance /time

6 0
3 years ago
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What other element had the same number of electrons as potassium??
sergiy2304 [10]

Answer:

Potassium is the only element with 19 electrons.

Explanation:

4 0
3 years ago
I’m so lost please help
ExtremeBDS [4]

C=4

D=-19

Explanation:

2exp-25/5exp-7= 4exp-19

7 0
3 years ago
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