Referat " Comparati etanolul cu acidul acetic"
Pentru realizarea referatului respectati urmatoarele etape:
1. scurt istoric
2. descrierea grupei functionale si a clasei de compusi chimici organici din care face parte fiecare substanta
3. proprietati fizice
4. proprietati chimice
5. calculul compozitiei procentuale a oxigenului din acidul acetic
6. importanta in industria chimica si in viata cotidiana
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Chemistry, 22.06.2019 09:10
Which class of molecules functions as chemical signals? hormones water carbohydrates proteins
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Chemistry, 23.06.2019 00:00
Before it was launched, a helium-filled balloon had a pressure of 201 kpa at a temperature of 27°c. at an altitude of 15,000 m, the pressure had decreased to 2.5 kpa and the temperature had dropped to -14 °c. the volume of the balloon increased to 59.3 m3. what is the original volume of the balloon? 13 m3 0.85 m3 0.077 m3 1.17 m3
Answers: 3
Chemistry, 23.06.2019 05:00
110 g of water (specific heat = 4.184 j/g c) and 100 g of a metal sample (specific heat = 0.397 j/g c) are heated from 25 degrees c to 75 degrees c. which substance required more thermal energy?
Answers: 1
Referat " Comparati etanolul cu acidul acetic"
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