I don’t see any equal signs to make it an equation. Am I missing something?
Answer:
8 oxygen atoms
Explanation:
One molecule of oxygen gas has two oxygen atoms (O2). If there are four molecules, then we multiply two by four to get 8 atoms.
The element that has the lowest mass per nuclear particle and therefore cannot release energy by either fusion or fission is the element Fe or iron. Iron is referred to as a special element due to its nuclear binding energy. A general idea is that you can have nuclear fusion of two elements and get a heavier element only up to the element iron in the periodic table of elements and also you can only have fusion reactions starting from the element next to iron. This is due to the nuclear forces and the electromagnetic force being balanced for the element iron.
Mass of NaOH required = 12 g
<h3>Further explanation</h3>
Given
500 ml solution = 0.5 L
Molarity = 0.6 mol / L
Required
mass of NaOH
Solution
Molarity = moles of solute per liter of solution
M = n / V
solute = NaOH
moles of solute = n = M x V
n = 0.6 x 0.5
<em>n = 0.3 moles</em>
Mass of NaOH = mol x MW
mass = 0.3 x 40 = 12 g
