Answer:
The new pressure will be 0.225 kPa.
Explanation:
Applying combined gas law:
where,
are initial pressure and volume at initial temperature 
.
are final pressure and volume at initial temperature 
.
We are given:
Putting values in above equation, we get:
Hence, the new pressure will be 0.225 kPa.
The atmosphere is considered homogeneous. It isn’t exactly on the smallest scales but that doesn’t matter. Homogenous means the composition will be the same in any sample taken from the substance. And clearly, the atmosphere is mostly gas. So the last answer is right
Answer:The the 
for the given reaction is 179.98 J/K.
Explanation:
The the for the given reaction is 179.98 J/K.
The trend in ionization energy that occurs across a period on periodic table is that
Ionization energy of elements within a period generally increases from left to the right.
<u><em>explanation</em></u>
Ionization energy is energy required to remove an electron from gaseous atom or ion.
The ionization energy increase across the period because, as you move across the period (from the left to the right) the atomic radius decrease.
This make outer electrons to be closer to the nucleus and more attracted to the center.Therefore it is hard to remove electron as you move across the period.
Answer:
Volume of acetone = 257.4 mL
Explanation:
Density = mass / volume
Density Hg = Mass Hg / Volume Hg
13.59 g/mL = Mass Hg / 15 mL Hg
13.59 g/mL . 15 mL = Mass Hg → 203.85 g
This is the mass of acetone
Density acetone = Mass acetone / Volume acetone
0.792 g/mL = 203.85 g / Volume of acetone
Volume of acetone = 203.85 g / 0.792 g/mL
Volume of acetone = 257.4 mL
