An architectural engineer.<span />
Answer:

Explanation:
The total amount of atoms is found by multiplying Avogradro's Number and the number of moles:


Answer:
helium family or neon family
Explanation:
you can use p
It begins with heating of phenol and formaldehyde in the presence of a catalyst such as hydrochloric acid, zinc chloride, or the base ammonia. This creates a liquid condensation product, referred to as Bakelite A, which is soluble in alcohol, acetone, or additional phenol.