It is a gully. :)
Brainliest answer, please? :P
Answer:
27J/Kmol
Explanation:
Heat = number of moles times the Moeller heat capacity chimes the change in temperature.
^ Q = nC△T
^ C = Q/ n△T = +53J / (1mol) (299.5K - 297.5K)
^ = 26.5 (rounded to 27)
Answer:
Well, electrons can be converted into a atomic number so if SE atomic number is 34 that means it has 34 electrons. AI has a atomic number of 13 meaning it has 13 electrons. So the difference is that SE has more electrons then AI.
The answer is 35.84
When adding using significant figures, you round the answer to the the number of decimal places of the lower-decimal number.
In this case, 4.26 has the lower number of decimal places (hundredths), so we round to hundredths.
This is likely the phase change from solid to gas, or sublimation. Gas molecules have more random motion and higher kinetic energies than liquid molecules, so the change is sublimation.