Answer:
One million of silver atoms weigh 1.79 xx 10^(-16)g. Calculate the atomic mass of silver. Atomic mass of silver =107.8g=107.8u
Answer:
I think it would be D. None of the above
Explanation:
why I think this is because none of the answers really adds up to it
Ionic compounds are formed by the complete transfer of electrons between the atoms. The atom which gains electron(s) forms anion whereas loss of electron(s) results in the formation of cation. They are bonded to each other by electrostatic force of attraction between the negatively and positively charged atoms.
While writing the ionic chemical formula for binary ionic compound the rules are:
- Writing the chemical symbol of the metals and non-metals involved in the compound formation.
- The charge i.e. the absolute value of oxidation number of each metal is written on respective atoms.
- The charge i.e. the absolute value of oxidation number are cross-multiplied that is the charge of first ion becomes the subscript of second ion and vice versa.
Hence, in the writing of ionic chemical formulas, the value of each ion's charge is "crossed over" in the crossover rule.
The net ionic equation : Ba²⁺ + SO₄²⁻ ⇒ BaSO₄ (s)
<h3>Further explanation </h3>
The electrolyte in the solution produces ions.
The equation of a chemical reaction can be expressed in the equation of the ions
In the ion equation, there is a spectator ion that is the ion which does not react because it is present before and after the reaction
When these ions are removed, the ionic equation is called the net ionic equation
For gases and solids including water (H₂O) can be written as an ionized molecule
So only the dissolved compound is ionized ((expressed in symbol aq)
Barium sulfate can be formed from the reaction:
Ba(NO₃)₂(aq) + Na₂SO₄(aq)⇒BaSO₄(s)+2NaNO₃(aq)
For full ionic equation :
Ba²⁺ + 2NO₃⁻ + 2 Na⁺ + SO₄²⁻ ⇒ BaSO₄ (s) + 2 Na⁺ + 2 NO³⁻
by removing spectator ions (2NO₃⁻ and 2 Na⁺), the net ionic equation :
<em>Ba²⁺ + SO₄²⁻ ⇒ BaSO₄ (s) </em>
