Answer:
The Sun and the planets were born from a cloud of gas and dust called the solar nebula 4.6 billion years ago. The collapse of the solar nebula was most likely triggered by a shock wave from a nearby supernova explosion. The Sun formed in the center, with the planets surrounding it in a thin disk.
Explanation:
Answer:
Liming reagent in the given reaction is oxygen.
Explanation:
Mass of octane = 12.85 g
Mass of oxygen = 7.46 g
Molar mass of octane = 114.23 g/mol
Molar mass of oxygen = 32




According to the reaction, 2 moles of octane requires 25 moles of O2
so, 0.1125 moles of octane requires
of oxygen.
but only 0.2331 mol of oxygen is present.
Hence, oxygen is the limiting reagent
Answer:
A barium atom would be expected to contain 2 electrons in its outer energy level.
Explanation:
The columns of the periodic table are called groups. There are eighteen groups, numbered from 1 to 18.
The elements of each group have the same number of electrons in their last atomic shell, which is why they have similar chemical properties, because the chemical properties of chemical elements are strongly related to the electrons located in the last atomic shell.
That is, in a group, the chemical properties are very similar, because all the elements of the group have the same number of electrons in their last or last shells.
<u><em>A barium atom would be expected to contain 2 electrons in its outer energy level.</em></u>
Answer:
The larger piston
Explanation:
(i just took the same test)
<h2>
Hello!</h2>
The answer is:
There are 732.24 grams of Dinitrogen Pentoxide
in 6.78 moles of the same compound.
<h2>
Why?</h2>
The dinitrogen pentoxide, or nitrogen pentoxide, is a rare salt that consists of anion and cations, and it's an important compound when preparing some kinds of explosives.
So, to answer the question, first, need to look for the molecular formula of the dinitrogen pentoxide, then, use it to calculate the mass in gram of 6.78 moles of the same compound.
The dinitrogen pentoxide formula is:

Where, the molar mass of each element are:


Calculating the molar mass of the compound, we have:


Now, calculating what is the mass of 6.78 of
, we have:

So, there are 732.24 grams of Dinitrogen Pentoxide
in 6.78 moles of the same compound.
Have a nice day!