Most of the time heat melts solids. hope that helps :)
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>
Wavelength = (speed)/(frequency) = 300,000,000/120,000,000 = 2.5 meters
The longer the lever the longer the power