Which of the following is TRUE about electromagnetic (EM) energy? Sound energy is a form of electromagnetic energy.
All forms of electromagnetic energy have both an electrical and magnetic properties
Radio waves are used for radiation therapy to kill tumor cells
All forms of electromagnetic energy do not travel at the speed of light in empty space

Determine the empirical formula of a compound containing 40.6 grams of carbon, 5.1 grams of hydrogen, and 54.2 grams of oxygen. in an experiment, the molar mass of the compound was determined to be 118.084 g/mol. what is the molecular formula of the compound? for both questions, show your work or explain how you determined the formulas by giving specific values used in calculations.

*will mark you brainliest + 15 points ** why does the equilibrium of a system shift when the pressure is increased? a. to maximize the stress on the system b. to stop restoring equilibrium to the system c. to increase the total moles of gas in the system d. to decrease the total moles of gas in the system

How are the terms group and period used on the periodic table