E... Directions: For each of the following problems, show your balanced chemical equation and all
of your calculations.
+ ...
e...
1. Determine all of the possible mole ratios between K with (O, and K, O) from this chemical
equation:
4K + 0 0 2 K2O
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2. Determine all of the possible mole ratios between Cu with (S and Cu2S) from this chemical
equation:
2 Cu + S Cus
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3. Determine all of the possible mole ratios from this chemical equation:
Mg(CIO3)2 + 0
MgCl2 + 302

These questions are based on the attached photo. the experiment is about burning magnesium metal with oxygen. 1. write the balanced chemical equation for the reaction you are performing. 2. calculate the mass of magnesium metal used in each trial. o trial 1: o trial 2: 3. calculate the actual yield of magnesium oxide for each trial. o trial 1: o trial 2: 4. magnesium is the limiting reactant in this experiment. calculate the theoretical yield of mgo for each trial. o trial 1: o trial 2: 5. determine the percent yield of mgo for your experiment for each trial. o trial 1: o trial 2: 6. determine the average percent yield of mgo for the two trials. your company currently uses a process with a similar cost of materials that has an average percent yield of 91 percent. if the average percent yield of this process is higher than that, this could save the company money. what is your recommendation to the company? support your recommendation using your data, calculations, and understanding of stoichiometry gathered from this lab.

Amap that uses a range of colors and shading to represent the elevation, depth, or landscape of specific features on earth is a/an map.

In water, a strong acid will break down into its component parts. a. completely b. partly c. never in water, a weak base will break down into its component parts. a. completely b. partly c. never