Essential Chemistry Flashcards
1
Q
How many different atoms can a single atom of carbon bond with?
A
4
2
Q
The valence shell of an atom can contain a maximum of how many electrons?
A
8
3
Q
What is an ion and how is it formed?
A
An ion is an atom or molecule in which the total number of electrons is not equal to the total number of protons giving it a negative electrical charge
4
Q
A ___ bond is formed when electrons are shared between two atoms
A
Covalent
5
Q
What happens chemically when NaCl is added to water?
A
It gets dissociated into ions
NaCl + H2O——> Na(+) + Cl (-) + H20
6
Q
Molecules that are not soluble in water are referred to as
A
Hydrophobic
