Neutrons actually don't carry an electrical charge, which is why they are called neutrons because they are "Neutral".
The choice for this question from my perspective was letter D which was... <span>Cover the wound with the palm of your hand until a bandage is located.</span>
Answer:
The mass of
present is ![x = 7.2 *10^{4} \ ng](https://tex.z-dn.net/?f=x%20%3D%20%20%207.2%20%2A10%5E%7B4%7D%20%5C%20%20ng)
Explanation:
From the question we are told that
The diameter of the spot is ![d = 1.0 \ cm](https://tex.z-dn.net/?f=d%20%3D%20%201.0%20%5C%20%20cm)
The volume of the solution present is ![v = 12 \mu L = 12 *10^{-6} \ L](https://tex.z-dn.net/?f=v%20%3D%20%2012%20%5Cmu%20L%20%20%3D%20%2012%20%2A10%5E%7B-6%7D%20%5C%20%20L)
The mass of
ions in one liter of solution is ![m_f = 6.0 \ g](https://tex.z-dn.net/?f=m_f%20%20%3D%20%206.0%20%5C%20g)
Generally the mass of
ions present is v is mathematically represented as
![x = \frac{v * m_f}{ 1}](https://tex.z-dn.net/?f=x%20%3D%20%20%5Cfrac%7Bv%20%20%2A%20%20m_f%7D%7B%201%7D)
![x = \frac{12 *10^{-6} * 6}{1}](https://tex.z-dn.net/?f=x%20%3D%20%20%5Cfrac%7B12%20%2A10%5E%7B-6%7D%20%2A%20%206%7D%7B1%7D)
![x = 7.2*10^{-5} \ g](https://tex.z-dn.net/?f=x%20%3D%20%207.2%2A10%5E%7B-5%7D%20%5C%20%20g)
Converting to nanograms
We have
![x = 7.2*10^{-5} \ g = \frac{ 7.2*10^{-5}}{1 *10^{-9}} = 7.2 *10^{4} \ ng](https://tex.z-dn.net/?f=x%20%3D%20%207.2%2A10%5E%7B-5%7D%20%5C%20%20g%20%3D%20%20%5Cfrac%7B%207.2%2A10%5E%7B-5%7D%7D%7B1%20%2A10%5E%7B-9%7D%7D%20%3D%20%207.2%20%2A10%5E%7B4%7D%20%5C%20%20ng)
Answer:
A) -ide
Explanation:
FeS = iron(II) sulfide or ferrous sulfide
NaCl = Sodium chloride
Al(3)O(2) = Aluminium oxide