You use comma when you have more than 1 thing to write:
such as i have a ball, a bat, and gloves.
so option C is the correct answer.
Answer:
Jacques Cousteau was born June 11, 1910. He’s known for many things like being marine explorer, inventor, and filmmaker. He sailed the world for most of the late 20th century educating people. He's famous for creating the Aqua Lung. This invention allowed scuba divers to free dive for an extended period of time. He can also be considered famous in America. His films reached America and Canada in the 60s where they were often played.
hope it help bye :)
Explanation:
In this sentence, the word "set" is a noun
Answer:3O2 + 4NH3 ---> 2N2 + 6H2O.
Explanation:
Let me give you (c) as an example: If you start out with 4.5 mol O2, assuming you want to completely react all the oxygen you'd need to add how much ammonia? The ratio of moles of O2 versus moles of NH3 is
(moles NH3) / (moles O2) = 4/3, or in other words,
moles NH3 = (4/3) x moles O2.
Therefore you need to add (4/3) x (4.5 moles) = 6 moles NH3.
The question says it want you to calculate the numbers of moles of all products and reactants for each case. So, that makes
(c) 4.5 moles [O2] + 6 moles [NH3] -------> 3 moles [N2] + 9 moles [H2O].
You need to do the same for (a) and (b)
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2) The balanced net reaction is:
Mg + 2HCl -------> MgCl2 + H2
According to this reaction, 2 moles of HCl are consumed for every mole of Mg added.
