Answer:
Charge on Phosphate is -3 (PO₄³⁻)
Explanation:
Ions or polyatomic ions are formed when an atom or molecule loses or gains electron(s) respectively.
Example:
Formation of ions.
Na → Na⁺ + e⁻ (Na loses one electron)
Cl₂ + 2 e⁻ → 2 Cl⁻ (Cl gains electron)
In polyatomic ions a charge is present on a molecule which has either two or more atoms.
Example:
CO₃²⁻ , SO₄⁻ , NH₄⁺ e.t.c.
In statement the K₃PO₄ polyatomic ionic compound. It is made up of three K⁺ ions and one Phosphate ion (PO₄ˣ⁻) ion.
As we know K belongs to group 1 metals so it has one valence electron and thus, forms a cation of +1 charge. So, for a neutral polyatomic ionic compound the overall charge on K₃PO₄ should be zero. Hence,
K (3) + PO₄ (X) = 0
Or,
+3 + X = 0
Or,
X = 0 - 3
X = -3
Therefore, the charge on phosphate is -3.
The acceleration on an object is proportional to the resultant force and inversely proportional to the mass of the object
<h3>Further explanation </h3>
Newton's 2nd law explains that the acceleration produced by <em>the resultant force on an object is proportional and in line with the resultant force and inversely proportional to the mass of the object </em>
∑F = m. a
F = force, N
m = mass = kg
a = acceleration due to gravity, m / s²
Newton's equation shows that the greater the net force applied to an object, the greater the acceleration, conversely the greater the mass of the object, the smaller the object's acceleration.
You can use this principle to choose the available answer options, because the questions are not complete
Answer:
Explanation:
Chemical properties of atoms relies solely on the number of electrons they contain, more particularly, the valence or outermost electrons in the orbit round the nucleus of an atom.
A neutral atom is one that has not gained or lost electron or even shared electrons with any other atom.
On close examination of how electrons are distributed in the orbits of an atom, we can know if an atom will gain or lose electrons in a reaction. This is very important in determining the chemical properties of an atom.
When sudden changes occurs in the body. lack of blood flow in the brain
Answer:
Of course it's C
Red planet
Explanation:
It is because the soil on Mars is rich of Fe (Iron).
That makes the soil look red.
Even on our planet we have such this places like hormuz island in Iran.
