Chemistry, 18.02.2021 20:10 lildebiecakes
PLEASE HELP CHEMISTRY TEST
Part I: Please match the correct term with each of the definitions. Write your answer on the
line provided. No answers are repeated, however there will be some choices left over.
A. Energy
B. Exothermic
C. Heat
D. Thermochemistry
E. Chemical potential energy I. Stays the same
F. Endothermic
J. Increase
G. Specific heat
K. Equilibrium
H. Decrease
1. When heat energy is added the speed of the molecules
2. Stored energy in chemical bonds
3. The study of heat changes that occur during chemical and physical changes
4. is reached when two objects are the same temperature
5. Amount of heat required to raise the temperature of 1 gram of a substance by 1"C.
6. This type of energy flows from warmer to cooler objects
7. The type of reaction where energy is absorbed
Answers: 3
Chemistry, 21.06.2019 13:50
How do the energy differences between the higher energy levels of an atom compare with the energy difference between the lower energy level of the atom
Answers: 1
Chemistry, 22.06.2019 20:00
There are two steps in the usual industrial preparation of acrylic acid, the immediate precursor of several useful plastics. in the first step, calcium carbide and water react to form acetylene and calcium hydroxide: cac2 (s) + 2h2o (g) → c2h2 (g) + caoh2 (s) =δh−414.kj in the second step, acetylene, carbon dioxide and water react to form acrylic acid: 6c2h2 (g) + 3co2 (g) + 4h2o (g) → 5ch2chco2h (g) =δh132.kj calculate the net change in enthalpy for the formation of one mole of acrylic acid from calcium carbide, water and carbon dioxide from these reactions. round your answer to the nearest kj .
Answers: 3
Chemistry, 22.06.2019 20:20
Which formula equation represents the burning of sulfur to produce sulfur dioxide? s(s) + o2(g) 4502(9) 2h2s(s) + 302(g) —> 2h20(0) + 2502(9) 4fes2+1102 —> 2fe2o3 + 8502 2802(g) + o2(9) v205 , 2503(9)
Answers: 1
Chemistry, 22.06.2019 23:00
If two identical atoms are bonded,what kind of molecule is formed
Answers: 1
PLEASE HELP CHEMISTRY TEST
Part I: Please match the correct term with each of the definitions. Writ...
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