Answer:
omega.
Explanation:
The omega numbers simply reference how many carbons away from the methyl end of the fatty acid chain that the first carbon-carbon double bond appears. If the double bond is three carbons away, it's called an omega-3 fatty acid.
You can just write omega.
Answer:
It's A.
Atoms that have the same number of valence electrons in their outer shell have similar properties and belong to the same family of elements.
Answer: 28.4 g of aluminum oxide is produced by the reaction of 15.0 g of aluminum metal
Explanation:
To calculate the moles :
The balanced chemical equuation is:
According to stoichiometry :
4 moles of
produce == 2 moles of
Thus 0.556 moles of
will produce=
of
Mass of
Thus 28.4 g of aluminum oxide is produced by the reaction of 15.0 g of aluminum metal.
Answer : The volume of
gas needed are, 90 L
Explanation : Given,
Volume of
= 60 L
Now we have to determine the volume of
needed.
As we know that at STP, 1 mole of gas contains 22.4 L volume of gas.
The given balanced chemical reaction is:
![2H_2S(g)+3O_2(g)\rightarrow 2SO_2(g)+2H_2O(g)](https://tex.z-dn.net/?f=2H_2S%28g%29%2B3O_2%28g%29%5Crightarrow%202SO_2%28g%29%2B2H_2O%28g%29)
By the stoichiometry we can say that, 2 moles of
react with 3 moles of oxygen gas to give 2 moles of
gas and 2 moles of water vapor.
From the balanced reaction we conclude that,
As,
volume of
react with
volume of
gas
So,
volume of
react with
volume of
gas
Thus, the volume of
gas needed are, 90 L