What is the total number of electrons in the second principal energy level of a sodium atom in the ground state?

What characteristic is most likely to narrow down soil sample matches? A. Soil color B. Presence of vegetation or animal material C. Presence of rare minerals or artificial debris D. Soil texture

An elements shows the number of protons in its nucleus

Review the equation below. 2KClO3 2KCl + 3O2 How many moles of oxygen are produced when 2 mol of potassium chlorate (KClO3) decompose? 1 2 3 6

What are organisms controlled by

Which is the molar mass of H20? O 10.02 g/mol O 16.00 g/mol O 17.01 g/mol O 18.02 g/mol

What are the three particles of an atom

Which of these are the largest? asteroids, comets, meteors, or are they all the same size?

A) the ka for acetic acid (h3cco2h) is 1.737 * 10-5. what is the pka for this acid? b. use the pka calculated above to determine the ph at which [h3cco2h]=[h3cco2-].

Suppose you take a piece of hard wax from an unlit candle. After you roll the wax between your fingers for a while, it becomes soft. What State of matter is the softer wax? Is it possible for wax to change without changing state

Prevailing winds peru