How does the heating element of a portable electric heater work? Question 5 options:

The element is a switch so some of the electrical energy flowing through the heating element is converted to kinetic energy.

The element is a resistor, so some of the electrical energy flowing through the heating element is converted to kinetic energy.

The element is a resistor, so some of the electrical energy flowing through the heating element is converted to thermal energy.

The element is a switch so some of the electrical energy flowing through the heating element is converted to thermal energy.

State two physical properties of ionic compound

Joseph has hypothesized that sound travels in waves. if he were following the scientific method, what should he do next? a. ask a question. b. test the hypothesis. c. study the results. d. tell other scientists about his hypothesis.

Calculate the ratio of h+ ions to oh– ions at a ph = 7. find the concentration of h+ ions to oh– ions listed in table b of your student guide. then divide the h+ concentration by the oh– concentration. record this calculated ratio in table a of your student guide. compare your approximated and calculated ratios of h+ ions to oh– ions at a ph = 7. are they the same? why or why not? record your comparison in table a. what is the concentration of h+ ions at a ph = 7? mol/l what is the concentration of oh– ions at a ph = 7? mol/l what is the ratio of h+ ions to oh– ions at a ph = 7? : 1