Can somebody please go answer my physics questions PLEASE it’s due tonight at midnight and I really need help

What kind of enegia produces the mixture of bicarbonate and vinegar  chemical producetion

Sounds propagates through some kind of medium. usually it's air, but it goes just as well through solid objects like walls, windows etc. a soundwave will compress the (air)molecules in front of it, and if this increased density wave hits your ears, you register it as sound. solid objects like walls are a lot denser than air, this means that they will damp a wave, but also carry it easier.