Atoms molocules and compounds Flashcards
1
Q
What is a molecule?
A
A molecule is made up of two or more atoms joined together by chemical bonds.
2
Q
Why would a single atom of oxygen not be consited a molecule?
A
A molecule is made up of two or more atoms joined together
3
Q
True or false - All compounds are molecules but not all molecules are compounds
A
True
4
Q
The difference of molecules and compounds are?
A
Molecules can have the same type of atom where compounds must have 2 or more different ones.
5
Q
C2H4 expanded is?
A
C2H4 = 2 x Carbon atoms and
4 x Hydrogen atoms
6
Q
What is a mixture
A
Something where atomes are mixed but not chemicaly bonded
7
Q
Examples of common compounds?
A
Water. H₂O.
Carbon Dioxide. CO₂
Sucrose. C₆H₁₂O₆
Table Salt. NaCl.
Oxygen Gas. O₂
Household Bleach. NaClO.
Hydrochloric Acid. HCl.
Ammonia. NH₃
