✨PLEASE HURRY✨ Which of the choices is an example of a chemical formula?
A)nacl
B)H20
C)Au
D)HCL

What quantity do units represent in value

What is the frequency if a wave that pases a given pount 22 times in 2 seconds

Objects a and b are visible in the night sky. six months later they are still visible, but object b shows less parallax than object a. which object is closer? a. a b. b c. you would need to wait another six months in order to figure this out. d. you would need to know the objects' angular diameters in order to figure this out.