5. What is the mass percent of each component in the mixture formed by adding 12 g of calcium
sullate, 18 , of sodium nitrate, and 25 g of
potassium chloride to 500 g of water?

An exothermic reaction is conducted in an insulated calorimeter filled with water. the calorimeter is then sealed so that there is no heat exchanged between the contents of the container and the surrounding air. which of the following statements is true about the reaction?

Electric charge is what ? a. kinetic energy b. radiation c. discovery d. electricity

Over the last 90 years, scientists have added to the body of evidence supporting the big bang theory. what is the latest piece of evidence discovered in 2014?