1. How does the classification “strong electrolyte” or “weak electrolyte” relate to the solubility of a substance?
2. Write the complete balanced chemical reaction and net ionic equations for the following:
   1. A solution of sodium carbonate is poured into a solution of potassium hydroxide
   2. hydrochloric acid and lithium bromate are mixed
3. Calculate the percent composition of each element in rubidium arsenate
4. Calculate the number of molecules in 90.90 μg of methanol.
5. Silicon nitride is made by a combining silicon and nitrogen at a high temperature.
   1. Write the complete balanced chemical reaction equation
   2. Calculate the molar mass of each substance and report in scientific notation with three sig figs
   3. Identify the type of reaction that takes place
6. Write the complete balanced molecular equation, the completely labelled oxidation half reaction and reduction half reaction for the synthesis of beryllium and oxygen.
7. When 36.03 g of carbon combines with 64.00 g of oxygen one of the reactants is completely used up in the reaction that produces carbon dioxide.
   1. How many grams of carbon dioxide are produced from the reaction?
   2. How many grams of which reactant is leftover upon completion of the reaction?
8. Calculate the percent yield in the photosynthesis reaction by which carbon dioxide is converted to sugar if 7.03 g of carbon dioxide yields 3.92 g of C₆H₁₂O₆, given the unbalanced equation for the reaction: CO₂ + H₂O  C₆H₁₂O₆ + O₂.
9. How many Tg of boron trifluoride are in 7.040 x 10²² molecules of this compound?
10. What is the oxidation number of phosphorus in nickel(III) phosphate?

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