Answer:
<u>-16200J</u>
Explanation:
(257J/g)(62.9g)
eliminate the variables
u get 16165.3
go to 3 significant digits
u get 16200
and since it is freezing we are taking out energy so it would be
-16200J
Answer:
The volume (in ml) of a 3.57 M solution of 
that contains 0.884 moles of is 247.61g mL
Explanation:
According to the definition of Molarity
which sates
"The amount of moles of a substance present in one litre of the solution is called as Molarity."
3.57M solution implies that 1000 mL of the solution conatins 3.57Moles of
Hence , 3.57 moles of is present in the 1000 ml of solution
Now,
In 1 mole of is present in the =
ml of solution
Similarily ,
In 0.884 moles of is present in the 
of solution= 247.61g mL
Most volcanoes and earthquakes occur along boundaries between tectonic plates because tectonic plates shift either spreading apart causing a earthquake or moving together which pushes the plate upwards causing a volcanoe
<span>d. flourine </span> fluorine<span> is the most reactive halogen
</span>
Check its reactivity the most reactive is the most metallic. And remember in third group of the periodic table contains all metals
