Compounds Flashcards
1
Q
What is a compound?
A
Two or more elements chemically bonded together with the atoms in fixed proportion throughout the compound.
2
Q
What does making bonds involve?
A
Sharing, gaining + losing electrons
3
Q
How are compounds separated?
A
Through chemical reactions
4
Q
Name and explain the 2 types of compounds:
A
Ionic:
- metal + nonmetal bond together
- metal loses electrons = +
- nonmetal gains electrons = -
- opposite charges = strongly attracted to each other
Covalent:
- molecules bonding
- share pairs of electrons
5
Q
Which properties does a compound have compared to the reactants?
A
Different both chemical + physical
6
Q
State some useful formulas:
A
Ammonia = NH3
Sulfuric acid = H2SO4
Calcium Chloride = CaCl2
Sodium Carbonate = Na2CO3
