The amount is always constant. The answer is letter A. The carbon atom is recycle in the biosphere. It may take different forms but it is still the same carbon atom. Carbon in fuel may turn into carbon dioxide or carbon monoxide after it it burned. The CO2 may then be used up by the plants as fuel to make another form of carbon based compounds such as sugar (glucose). For more information, I suggest looking up the carbon cycle.
Answer:
1.40
Explanation:
8.45×
× 
= 1.40318 ≈ 1.40 mol
Answer:
negative
Explanation:
18 negative
19 neutral
10 positive
there are are more negative
Molality is simply defined as the number of moles of
solute over the mass of the solvent.
In this case the solute is NaCl and the solvent is water,
therefore:
moles solute = 0.630g/ 58.44 g/mol = 0.0108 mol
So the molality is:
m = 0.0108 mol / (0.525 kg)
<span>m = 0.0205 molal</span>
