Write the balanced molecular equations, including states of…

Write the balanced molecular equations, including states of matter, for each of the following situations if a reaction is expected to occur.  If no reaction occurs, write “NR” (no reaction).   A.   (3 pts)  Aqueous magnesium acetate and aqueous potassium carbonate are combined together. B.   (3 pts)  A gold bar is dropped into a beaker of hydrochloric acid. C.   (3 pts)  Liquid hexane is combusted completely.

Write the balanced molecular equations, including states of…

Write the balanced molecular equations, including states of matter, for each of the following situations if a reaction is expected to occur.  If no reaction occurs, write “NR” (no reaction).   A.   (4 pts)  A chunk of zinc is dropped into a beaker of aqueous acetic acid. B.   (4 pts)  Aqueous solutions of cuprous sulfate and strontium iodide are mixed together. C.   (4 pts)  Rubbing alcohol (isopropanol, C3H8O) is burned (combusted).

A 248-gram piece of aluminum initially at 94.1°C is dropped…

A 248-gram piece of aluminum initially at 94.1°C is dropped into water in a coffee-cup calorimeter initially at 2.2°C.  If the final temperature of the aluminum and water is 18.7°C, what mass (in g) of water is present in the calorimeter? Assume all heat transfer occurs between the aluminum and water, and that the density of water over the relevant temperature range is 0.997 g/mL.  Show all work, and highlight your answer in a readable background color.