How much heat is needed when 2.47 g sand, SiO2, is heated from 17.1 °C to 46.7°C

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

Why does his teacher ask him to balance the equation by including the correct coefficient

The formation of a solid, also known as a is an indication of a chemical change. precipitate particulate particle powder