1. A
2. D.
3. Either A or B (my best guess is B.)
Answer:
SnH4
Explanation:
Because the melting point of SnH4 is higher than CH4
Answer:
all these are physical properties except release of heat so it's probably heat energy given off
Notch gfi.hu,ivjmgfcmhtxumgfhkvHbyrdyu,