What can be used to represent the direction and strength of force

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

Which statement can best be concluded from the ideal gas law?

Based on its chemical properties, identify the position of each chemical family on the periodic table.