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Question description

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1. How does the classification “strong electrolyte” and/or “weak electrolyte” relate to the solubility of a substance?
2. Complete the table:
1. Write the complete balanced molecular and net ionic equations, identify the type(s) of chemical reactions:
1. The reaction of sulfuric acid with elemental copper produces sulfur dioxide, water and copper (II) sulfate.
2. Potassium hydrogen carbonate decomposing into a metal oxide, and hydrogen carbonate.
3. A solution of sodium carbonate is poured into a solution of potassium hydroxide
4. Solutions of silver nitrate and lithium bromide are mixed
1. Calculate the mass (in kg) of water produced from the combustion of 1.0 gallon (3.8 L) of gasoline (C8H18). The density of gasoline is 0.79 g/mL.
1. Silicon nitride (Si3N4) is made by a combining Si and nitrogen gas (N2) at a high temperature. How much (in g) Si is needed to react with an excess of nitrogen gas to prepare 125 g of silicon nitride if the percent yield of the reaction is 95.0%?
1. A 0.5998g sample of a new compound with a molar mass of 93.12 g/mol was analyzed and found to have 0.2322 g of carbon, some hydrogen, and 0.3091 g of oxygen. What is the formula for the compound?
1. The combustion of 3.42 g of a compound is known to contain only nitrogen and hydrogen gave 9.82 g of NO2 and 3.85 g of water. Name the compound.
1. A compound with a known molecular weight (146.99 g/mol) that contains only C, H, and Cl was studied by combustion analysis. When a 0.367 g sample was combusted, 0.659 g of CO2 and 0.0892 g of H2O formed. What are the empirical and molecular formulas?

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