" if a compound is an acid or a base, but NOT one of the strong acids or bases, then it MUST be a weak electrolyte. Strong electrolytes – ionic or molecular compounds that ionize completely in solution. Weak electrolytes– molecular compounds that are partially ionized in solution."
He concluded that electrons are a component of the atoms of all elements.
1000 g of feathers is the least dense
1.6726219 × 10-27 kilograms
(The -27 is a exponent)
Answer:
2e⁻ are transferred in the formation of one formula unit of product
Explanation:
The reaction is:
2Rb + Br₂ → 2RbBr
In ground state, both elements have 0 as oxidation state.
In the RbBr, Rb acts with+1 and Br with -1.
Rb increased the oxidation state → Oxidation
Br decreased the oxidation state → Reduction
Rb → Rb⁺ + 1e⁻
Br₂ + 2e⁻ → 2Br⁻
Bromine had to gained 2 electrons, to decreased the oxidation state, so
(Rb → Rb⁺ + 1e⁻ ) ₓ2 = 2Rb → 2Rb⁺ + 2e⁻
(Br₂ + 2e⁻ → 2Br⁻) ₓ1 = Br₂ + 2e⁻ → 2Br⁻
2Rb + Br₂ + 2e⁻ → 2Br⁻ + 2Rb⁺ + 2e⁻
If we cancel the electrons, we reach the balanced reaction. In conclussion, 2 e⁻