М(СО₂)=165 г
н(СО₂)=м(углекислого газа)/М(СО₂)
Н=Nₐ*м(углекислого газа)/М(СО₂)
Н=6.022*1023 * 165/44.01=2.258*10²⁴
nuclear fusion
Stars produce their energy through nuclear fusion. For most stars, this process is dominated by a process called the "proton-proton chain," a sequence of events that transforms four hydrogen atoms into one helium atom.
The only answer that really makes sense here is the first one, properties. I would go with that one.
Explanation:
First, we will calculate the molar mass of 
as follows.
Molar mass of = 
= 78 g/mol
So, when 2 mol of 
burns, then heat produced = 6542 KJ
Hence, this means that 2 molecules of 
are equal to 
of burns, heat produced = 6542 KJ
Therefore, heat produced by burning 5.5 g of =
= 228.97 kJ
= 228970 J (as 1 kJ = 1000 J)
It if given that for water, m = 5691 g
And, we know that specific heat capacity of water is 4.186 
.
As, Q = 
228970 J = 
Thus, we can conclude that the final temperature of the water is 
.
Answer:
Most people, including chemists, prefer to use these common names for the compounds mentioned because they are frequently found, and the common names are shorter, easier to pronounce, and more widely known.
