Answer:
concentration = mol/volume = 4/2 = 2M
Answer:
Part A. Mass = 0.12 g of NaCl
Part B. Mass = 0.41 g of Pb
Explanation:
Part A. We verify the moles
2×10⁻³ moles of NaCl
Let's determine the molar mass → Molar mass Na + Molar mass Cl
23 g/mol + 35.45 g/mol = 58.45 g/mol
We convert moles to g → 2×10⁻³ mol . 58.45 g/mol = 0.11 g
Part B. → 2×10⁻³ moles of Pb; Molar mass = 207.2 g/mol
We convert moles to g → 2×10⁻³ mol . 207.2 g/mol = 0.41 g of Pb
Hello there!
The correct answer is option D
The valence electrons are the numbers from 1 to 8.
Best of luck!
Answer:
Ionic bonding happens when an atom of an element gives one or more of its electrons to the other element's atom..it usually takes place between metal and non metal atoms...like in NaCl, Na gives its valence electron to chlorine and completes its own octet. Chlorine accepts the electron and completes its own octet too...but now both the atoms have an opposing charge and hence they attract each other to form an IONIC bond.
Ionic bonds are the strongest of the bonds...here complete transfer of electrons takes place unlike covalent bonds.
HOPE IT HELPED..
:)