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Which describes the dissolution of MgCl2 in water? MgCl2 → Mg+ + Cl2– MgCl2 → Mg2+ + Cl22– MgCl2 → Mg2+ + 2 Cl– MgCl2 → Mg+ + 2 Cl–

How many molecules of carbon dioxide (CO2) are in 2.8 g of carbon dioxide (CO2)? Show the calculation.

A solution is prepared by dissolving 1.5 g of NaCl in enough water to produce a total solution volume of 750 mL. What is the concentration of the solution in % m/v?

Which of the following reactions is NOT balanced? Fe2O3 + 2 Al → 2 Fe + Al2O3 C6H12O6 + 6 O2 → 6 CO2 + 6 H2O CaO + 3 C → CaC2 + CO C2H6O + O2 → 2 CO2 + 3 H2O

What is the IUPAC name of this hydrocarbon?  

Which choice correctly numbers pinolenic acid (shown below) using the omega system?  

An order is given to administer 15 g of lactulose, often used for treating complications of liver disease. The lactulose syrup has a concentration of 10. g/15 mL. What volume, in milliliters, of syrup should be given to the patient? Show the calculation.

Which molecule below exhibits the strongest intermolecular forces of attraction?  

The following equation shows the combustion of acetylene C2H2 in an arc welder. If 85.0 g of acetylene undergo combustion in an excess of oxygen, how many grams of carbon dioxide can be formed? Show the calculation. 2 C2H2 (g) + 5 O2 (g)

Which glycosidic linkage does the sugar shown below contain?