Which are included in a chemical formula? O letters and numbers
O math problems
O electrical signals
O hormones and cells

A

Explanation:

Letters stand for elements and numbers show how much/many there are.

i dont think this is the place to ask this.

maybe uh, try talking with someone you know or like about this.

life can be tough.

1. h

2.a

3. i

4. d

5. b

6.f

7.g

8.e

9.c

i hope that this is