Chemical because the propane has stored chemical energy which is being released and a by-product of that propane is heat or themal energy.
Because alloys have qualities that are preferable to pure metals, almost all metals are utilised as alloys—that is, mixes of several elements. Alloying is done for a variety of purposes, the most common of which are to increase strength, corrosion resistance, or cost savings.
Answer:
A) covalent bond
Explanation:
Covalent bonding generally happens between nonmetals.
Every atom tends to form configuration of noble gas , with the 8 electrons in valence shell.
