An 18.7 g sample of platinum metal increases in temperature by 3.3 °C when 5.7 J of heat are added. What is the specific heat of the platinum?

Where are each of the three particles located within the atom?

List four observations that indicate that a chemical reaction may be taking place

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!