Match each element to the correct description of its usual behavior in a chemical reaction. Silicon (Si)Argon (Ar)Sodium (Na)Will lose electrons

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

What are transitions between a liquid and gas called? identify which way they are transitioning

What is the ph of a solution that has a hydrogen ion concentration of 1.0 * 10 -9 m?