Answer:20 minutes
Explanation:
06:58am - 06:38am =20 minutes
Double displacement: parts of compounds switch places to form two new compounds
FYI
decomposition: a complex substance breaks down into two or more simple substances
Single displacement: a single substance replaces another substance in a compound
<span>Synthesis: two simple substances combine to form a new complex substance</span>
Because they occur at an atomic level, changing the actual structure of the thing.
Hope it helps
