Physics, 14.10.2019 11:50, toxsicity

How can energy change during a chemical reaction?
a. transfer of heat and/or work
b. increase in heat and/or destruction of matter
c. change in the mass of the reactants or thermal energy
d. increase or decrease in total energy of a system?

Answers: 3

Show answers

Other questions on the subject: Physics

Physics, 20.06.2019 18:04, Loganstilson9847

Why do scientists believe that light is made of streams of particles? scientists believe that light is made of streams of particles because only the presence of photons can explain phenomena observed during experiments on the photoelectric effect. these observations include only some frequencies of light causing the ejection of electrons, no time gap existing between light striking a metal and electrons being ejected, and intensity having no effect on the kinetic energy of the ejected electrons.

Answers: 1

continue

Physics, 21.06.2019 16:00, bugsbunny27

Alarge truck is moving 22.0 m/s. if it’s momentum is 125,000 kg • m/s, what is the trucks mass

Answers: 1

continue

Physics, 22.06.2019 09:30, ccory0626

Why are graphs useful when interpreting data

Answers: 2

continue

Physics, 22.06.2019 10:30, markfaerman5408

Carbon is allowed to diffuse through a steel plate 15 mm thick. the concentrations of carbon at the two faces are 0.65 and 0.30 kg c/m^3 fe, which are maintained constant. if the preexponential and activation energy are 6.2 x 10-7 m2 /s and 80,000 j/mol, respectively, compute the temperature at which the diffusion flux is 1.43 x 10^-9 kg/m^2 -s.

Answers: 3

continue

Do you know the correct answer?

How can energy change during a chemical reaction?
a. transfer of heat and/or work
b. in...