You dry a hydrated salt to determine the percent water in the salt using an experiment identical to the epsom salt experiment. The original mass of the hydrated salt was {x} grams. You find that you have removed {y} grams of water during the drying process. What is the percent by mass of water in the original hydrated salt sample? Give your answer to one decimal place.

You add {x} grams of anhydrous magnesium sulfate to {y} grams of sodium carbonate. What is the theoretical yield of the solid precipitate product? Give your answer to 3 decimal places

May 1, 2026

You measure the final mass of a product as {x}. The theoretical yield was {y}. What is the percent yield of the product? Give your answer to 1 decimal place.

May 1, 2026

You add solid iron (a black color) to a light blue solution of copper nitrate. After a few minutes, the solution turns a brown color and the solid metal in the solution turns a orangish red. In this reaction _______ was reduced and  _______ was oxidized

May 1, 2026