Which sample of matter is classified as a solution? 1. h2o(s) 2. h2o(l) 3. co2(g) 4. co2(aq)

Calculate the mass of silver needed to react with chlorine to produce 126g if silver chloride?

Astudent is trying to create a table that compares hypotheses, theories, and laws. hypothesis theory law do scientific researchers formulate it? yes yes yes does it explain why things happen? yes yes no yes yes yes is it used to make predictions? no yes yes which of the following questions would most likely fill the blank in the table? is it an intelligent guess? is it newly formulated? is it based on observations? has it been proved?

Which of the following represents the ester functional group? a. -coo- b. -cho c. -cooh d. c=o