An excess of sodium carbonate, Na, CO2, in solution is added to a solution containing 16.91 g CaCl2. After performing the experiment, 11.53 g of calcium carbonate, CaCo3, is produced. Calculate the percent yield of this reaction.

Earth's axis of rotation is tilted at an angle of 23.5 degrees. what is one change you would see on earth if its axis was not tilted?

3.09 lab: reaction of metals 1 which combinations of substances resulted in a chemical change? for each metal that participated in a chemical change, write the type of metal it is, based on your examination of the periodic table. were there any metallic compounds that did not react with either the acid or the base? write the type of metal, based on your examination of the periodic table. make a general statement about the reactivity of the metals in this experiment.

In which of the following phases of matter do molecules have the highest amount of energy? a. liquid b. gel c. solid d. gas