Help on Chemistry Questions?

Question

For these chemical equations I need to identify the type (synthesis, d.replacement, s.replacement, decomposition, combustion..) and write out a balanced equation. I'm having a hard time with the following ones though:

1. Calcium Chlorate is heated

2. Isopropyl alcohol is burned in oxygen

3. Iron metal shavings are added to hydrochloric acid

4. Solid sodium carbonate is heated in a crucible

5. Sodium metal is added to distilled water

Thanks in advance!

Answer 1

1. dunno

2. combustion

3. decomposition

4.?

5. an explosion, or something, right? so combustion?

Sorry  I wasn't more help.