Answer:
European Union was on grand committee
KauCl4 :
K = + 1
au = + 7
Cl = - 2
hope this helps!
Resonance in air columns is used in a variety of musical woodwind instruments. Something like a flute for example uses resonance to make sound. Not sure what instruments you are talking about unless you provide a list.
Q1. Chemical, Physical, Physical, Physical
(l am not 100% sure about the 4th answer)
Q2. All of the above
