Consider each of the numbers and units below, select all which represent measurements and therefore have error. 16.4 inches long
30 students in class
Weighs 107.2 kilograms
1 dozen = 12 objects

What is the empirical formula of c6h18o3? ch3o c2h5o c2h6o c2h5o5

The chemical equation below shows the reaction of sodium (na) and chlorine (cl) to form sodium chloride (nacl). 2na + cl2 → 2nacl in this equation, which of the following is a reactant? i. sodium ii. chlorine iii. sodium chloride

Astable electron arrangement for an atom is one that does not easily change. how is this arrangement arrived at? a. valence electrons are transferred or shared to create a full outer shell of electrons. b. valence electrons are discarded into space to create a full outer shell of electrons. c. protons (positive charge) pair with valence electrons (negative charge) to create a strong bond. d. outer shells with valence electrons are transferred or shared.