Determine the number of bonding electrons and the number of nonbonding electrons in the structure of bef2. enter the number of bonding electrons followed by the number of nonbonding electrons, separated by a comma, in the dot structure of this molecule (e. g., 1,2).

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

Express the following number in scientific notation. 0.026890 =

Why did southern business leaders want to increase the number of slaves