Answer: It’s important because people go to the doctor when they don’t feel good, and sometimes it’s a virus, and sometimes it’s just bacteria.
Answer:
Ni^2+
Explanation:
The following data were obtained from the question:
Proton = 28
Electron = 26
Neutron = 34
Next, we shall determine the atomic number of the element.
Atomic number of an element is simply defined as the number of protons in the atom of an element.
Thus,
Atomic number = proton number
Proton = 28
Atomic number = proton number = 28
Atomic number = 28
Therefore, the element is Nickel since no two elements have the same atomic number.
Finally, we shall determine the charge on the Nickel atom as follow:
Proton = 28
Electron = 26
Charge on atom =
Charge on atom = Proton – Electron
Charge on atom = 28 – 26
Charge on atom = +2
Therefore, we can represent the Particle as Ni^2+
They can be found in food or beverages
Answer:
m = 0.544 moles/kg
Explanation:
To do this, we need to use the expression for molality of a solution which is:
m = n / kg water
Where:
n: moles of solute
m: molality of solution
In this case, we have the moles of the solute, which is the C6H12O6 and the grams of water, and these grams would have to be turn into kg. Let's do this first:
kg of water = 150 g * 1 kg / 1000 g = 0.150 kg of water.
Now, replacing in the above expression of molality, we can calculate the molality of the solution:
m = 0.0816 / 0.150
<h2>
m = 0.544 moles/kg</h2>