Which of the following statements is true? incandescent light bulbs are almost 100 percent efficient. heat is considered "lost" energy because it cannot be used for work. an electric drill gains energy in the form of heat and sound. endothermic reactions release heat.

Select the correct answer. when carbon dioxide dissolves in water, it sometimes reacts with water to form carbonic acid as in this balanced equation: co2 + h2o → h2co3. if 495 milliliters of carbon dioxide at 25°c and 101.3 kilopascals reacts with excess water, what is the theoretical yield of carbonic acid? use the periodic table and the ideal gas resource a. 0.889 g b. 1.10g c. 1.27g d. 2.02g what's the answer! quick!

Which change in temperature is the smallest? a change of 1 thomson degree a change of 1 kelvin degree a change of 1 fahrenheit degree a change of 1 celsius degree

Astudent reacts 13 moles of iron with 21 moles of oxygen according to the following equation: