Which of the following pairs of elements would most likely form a covalent bond? (a) Sodium and Bromine (c) Calcium and Oxygen (b) Oxygen and Hydrogen (d) Silver and Chlorine

Word equation for k(s) +h2o(l) yield koh (aq) + h2

What energy conversion occurs when a sling shot is used to shoot a rock across the room? (2 points) question 2 options: 1) stored mechanical energy is converted to mechanical energy. 2) stored mechanical energy is converted to radiant energy. 3) gravitational energy is converted to radiant energy. 4) gravitational energy is converted to mechanical energy.

Which of the following is an example of how telecommunication devices people do their jobs? a.) a security guard checks the time using a digital watch. b.) a banker does some quick math using a solar calculator. c.) a nurse uses a digital thermometer to take a patient’s temperature. d.) a construction worker reports in to his office using a cell phone.