Answer:
Astamañana vaya buenas noches
Answer:5-3=2
As 5apple eaten 3apple so left 2apple
ANSWERS:
1.

⇒ 2KCl +

2.

⇒

3.

⇒

4.

⇒

5.

⇒

I have attached my work for 1-3. I would like to see if you can get 4 and 5 on your own. but, if you are struggling/copnfused please let me know in the comments! :)
Answer:
my best guess is b
Explanation:
typically the lower the pitch the longer the wave line inbetween the inclines are