Sounds with a small amount of energy travel more energy. Lesson 4.07
distances than sounds with
shorter
same
medium
longer

What happens when an acid dissolves?

What is the independent variable in this investigation? mass volume sample number substance density

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