Which of the following is a physical change: a. turning solid sodium to and chlorine gas to salt
b. forming a mixture
c. food turning into waste in the intestines
d. burning wood

Need ! asap will mark 10 pts using the room temperature line (orange line) and your periodic table, make lists that identify the state of matter (gas, liquid, or solid) in which each element you plotted exists at room temperature. explain your answers

What type of energy conversion occurs when you place your feet near the fire place and they become warm

What do electromagnetic waves carry? how are they produced through which media can they move? where do they transfer energy? what do they not transfer? what do mechanical waves carry? how are they produced? through which media can they move? where do they transfer energy? what do they not transfer?