1. Give the valence electrons for the following elements: Ca, Cl, Na, O 2, 14, 15, 16 1, 14, 15

[answerhappygod]

1. Give the valence electrons for the followingelements:
Ca, Cl, Na, O
2, 14, 15, 16
1, 14, 15, 16
2, 7, 1, 6
2, 4, 5, 6
2. How many mL of concentrated NaOH (19.3M) are needed tomake 4.00L of 1.49 M solution of NaOH?
207
4.825
309
4825
3. How are covalent bonds formed?
Orbitals are shared between two atoms by overlappingelectrons.
Electrons are shared between two atoms by overlappingorbitals.
Electrons are donated from one atom to another, and theresulting ions are then attracted to each other because of theiropposite charges.