Explanation:
Chemical formula of chalcone is 
and during the preparation of chalcones, a base like sodium hydroxide acts like a catalyst. This catalyst helps in the abstraction of proton from the methyl group acetophenone in order to obtain a negative charge methylene group.
This methylene group then attacks carbonyl carbon of the benzaldehyde.
Answer:
the product is Mg(Clo3)2 + AgI
Answer:
Scientist use GPS satellites and movement tracers.
Explanation:
Answer:
Plasma
Explanation:
Plasma is a common state of matter in the universe but uncommon on our planet. Plasma makes up the sun and other stars.
