Answer:
Physical science, in turn, can be divided into chemistry and physics. Chemistry is the study of matter and energy at the scale of atoms and molecules. ... Physics is the study of matter and energy at all scales—from the tiniest particles of matter to the entire universe but i dont really know if there is new information to discover
Explanation:
hope it help and if it doesnt sorry ;)
Answer:
The work done on the system is 17.75_KJ
Explanation:
To solve this question we need to know the required equations from the given variables, thus
Initial volume = 85L
Final volume = 12L
External pressure = 2.4 atm.
work done = - PΔV
2.4×(85-12) = 175.2L×atm
Converting from L•atm to KJ is given by
1 L•atm = 0.1013 kJ
(175.2 L•atm) * (0.1013 kJ / 1 L•atm)
= 17.75 kJ
The work done on the system is 17.75_KJ
3. 6.02 x 10^23 atoms of At
<span>0.504 moles
First look up the atomic weight of mercury.
atomic weight of mercury = 200.59
Then divide the mass of the mercury you have by it's atomic weight
101 / 200.59 = 0.503515
So you have 0.503515 moles of mercury. Round the result to 3 significant digits giving you 0.504 moles.</span>
