Compounds? Please tell me if I am correct!
Solution :
Molar mass of 
is :
M = 6×12 + 6×1 g
M = 78 g
78 gram of contains 
molecules.
So, 89.5 gram of contains :
Now, from the formula we can see that one molecule of contains 2 hydrogen atom . So, number of hydrogen atom are :
Hence, this is the required solution.
Answer:
Convergence of specialised behaviour, eye movements and visual optics in the sandlance (Teleostei) and the chameleon (Reptilia) ... Despite its underwater lifestyle, this fish displays visual behaviour and rapid strikes for prey that are remarkably similar to those of the chameleon
Explanation:
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Answer:
=302.28 grams
Explanation:
Lead (II) Chloride is produced by the reaction between the reaction between Pb(NO₃)₂ and NaCl according to the equation below.
Pb(NO₃)₂ + 2NaCl → PbCl₂ +2 NaNO₃
From the equation 2 moles of NaCl produce 1 mole of PbCl₂
Therefore the reaction ratio is 2:1
In 50.0 g of sodium, there are 50/23 moles
=2.174 moles
Since the reaction to product ratio is 2:1, then the number of moles of PbCl₂ produced is. 2.174 moles×1/2=1.087 moles.
Mass= number of moles × RMM
=1.087 moles×278.1grams/mol
=302.28 grams
