a student added 0.1 M hydrochloric acid solution to a sodium hydroxide solution of unknown concentration and generated the following titration curve. what indicator did this student add to the Erlenmeyer flask

What is lincoln's purpose in writing this speech? question 1 options: to stress the difficulties of war to honor those who died in the war to call for an end to the war to call the country to join a new war

Large helium-filled balloons are used to lift scientific equipment to high altitudes. what is the pressure inside such a balloon if it starts out at sea level with a temperature of 10.0ºc and rises to an altitude where its volume is twenty times the original volume and its temperature is – 50.0ºc ?

Why dose heating increase the speed at which a solution dissolved in water