Chemistry, 02.09.2019 18:10 carterlewis02
Polymers are large molecules composed of simple units repeated many times. they often have relatively simple
empirical formulas. calculate the empirical formulas of the following polymers.
(a)lucite (p; exigals); 59.9% c, 8.06% h, 32.0% o
(b)saran; 24.8% c, 2.00% h, 73.1% cl
(c)plolyethylene; 86 % c, 14%h
(d)polystyrene; 92.3% c, 7.7 % h
(e)orlon; 67.9% c, 5.70% h, 26.4% n
Answers: 2
Chemistry, 21.06.2019 14:30
Which statement about sound is not true? a. air particles travel with sound waves. b. sound waves cannot travel through a vacuum. c. sound waves exist even if no one hears them. d. air particles vibrate along the path of a sound wave.
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Chemistry, 22.06.2019 16:00
Which of the following is the correct definition of chemical energy? a. energy an object has because of its motion or position b. energy resulting from the flow of charged particles, such as electrons or ions c. energy produced from the splitting of atoms d. energy stored in chemical bonds of molecules
Answers: 1
Chemistry, 23.06.2019 03:10
Which is true according to the law of conservation of energy
Answers: 1
Polymers are large molecules composed of simple units repeated many times. they often have relativel...
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