To measure the amount of calcium carbonate (caco) in a seashell, an analytical chemist crushes a 2.100 g sample of the shell to a fine powder and titrates it to the endpoint with 119. ml of 0.300 m hydrogen chloride (hci) solution. the balanced chemical equation for the reaction is 2hci(aq) + co, (aq) ? h2co3(aq) + 2a (aq). what kind of reaction is this?

How heavy is thanos? a) 3000 lbs b) all of it c) the price of tea in china d) heavy enough

The excretory system,need answers for all: )

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?