Answer:
yes something is contributed for science because today is the age of science
Molar mass NaCl = 58.5 g/mol
C = 158.0 g/L
Molarity = C / molar mass
M = 158.0 / 58.5
M = 2.7000 M
hope this helps!
Answer:
Ozone is a molecule with three oxygen molecules.It is in the upper atmosphere and it protects living organisms by keeping UV rays from reaching the earth's surface. Ozone (O3) is a triatomic, molecule, consisting of three oxygen atoms. ... O3 is the formula for ozone. It has three oxygen atoms.
Explanation:
My brain
Latitude and longitude are the x and y axis on a grid. When you're trying to find a location on earth, you need to graph it, so you can pinpoint the location. There is no grid if there is no longitude and/or latitude lines. Without one of the lines, it would be very hard to graph, which will be difficult in finding locations on earth. But hey, I'm not too sure. I recommend looking at other people's answers too and searching it up.
Answer: (D) 0.025 mol 
Explanation:
The given balanced equation is :

According to stoichiometry :
4 moles of ammonia
reacts with = 5 moles of oxygen 
Thus 0.30 moles of ammonia
reacts with =
moles of oxygen 
Now as given moles of oxygen are more than the required amount, oxygen is the excess reagent.
moles of oxygen
left = 0.40 - 0.375 = 0.025
Thus 0.025 mol
excess reagent remains.