Whats the ph for a solution poh4 9.78 concentration of solution

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 rules of engagement (roe) working group is often used to (select all that apply.)

When the water vapor cools it condenses select a number that represents his process on the