20km/h to 80km/h in 0.5h

Zoe is investigating the composition of substance a, an unknown substance. using chemical processes, she analyzes substance a and determines it is composed of sodium, oxygen, and hydrogen atoms in a ratio of 1 : 1 : 1. what is substance a? a. a compound b. an element c. a heterogeneous mixture d. a homogeneous mixture

The variability in marine salinity between habitats does not impact the fish living there. select the best answer from the choices provided t f

How can one make a supersaturated solution? (apex)