Bohr – proposed that electrons in an atom are found in .

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

Agas can holds 2.0 gal of gasoline. what is this quantity in cubic centimeters?

What is the solubility of substance?