I believe its G because it has the same amount of particles. (I haven't had much background)
<u>Answer:</u> The energy released for the decay of 3 grams of 230-Thorium is 
<u>Explanation:</u>
First we have to calculate the mass defect 
.
The equation for the alpha decay of thorium nucleus follows:
To calculate the mass defect, we use the equation:
Mass defect = Sum of mass of product - Sum of mass of reactant
(Conversion factor: 
)
To calculate the energy released, we use Einstein equation, which is:
The energy released for 230 grams of decay of thorium is 
We need to calculate the energy released for the decay of 3 grams of thorium. By applying unitary method, we get:
As, 230 grams of Th release energy of =
Then, 3 grams of Th will release energy of = 
Hence, the energy released for the decay of 3 grams of 230-Thorium is
I believe there are 3 significant figures B.
Answer:
The Bowen's reaction series describes how minerals form in sequential order, forming at higher temperature to a lower temperature. There are two branches of crystallization, one is the continuous branch that is on the right and the other is the discontinuous branch that is on the left.
The minerals that are at the top of the Bowen's reaction series forms at a higher temperature.
In the discontinuous branch, the first mineral to crystallize from the melt is Olivine that forms at a higher temperature of about 1400°C. After crystallization, some melt remains and undergoes fractional crystallization leading to the formation of Pyroxene. Again, with the remaining melt, it reacts and forms Amphibole, followed by Biotite (mica).
In the continuous branch, the first minerals to form are the calcium-rich minerals and successively forms sodium-rich minerals. These minerals that form at a higher temperature are basic in nature and gradually change into acidic minerals.
From both the branches, it commonly forms the mineral Potassium feldspar. After this, the remaining melt combines with the magma and forms Muscovite (Mica), and at a temperature of about 650°C, it forms a more resistant and stable mineral known as the Quartz.
