Which of these following terms are made of matter and which or not made of matter: air, light, radio, magnetic field, car, radio wave, feeling, flashlight, heat, textbook, human body, and thought

What royal scientist used the 29th day of frozen vapor to encounter elements for mastering new culinary creations?

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

How do you know when a chemical reaction has occurred