Which atom has the smallest atomic radius? cs k li fr

How many moles are equivalent to 55.5g of nano3

If you want to create an electrical current, which situation would produce a solution capable of this

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