WGU D425 Introduction To Chemistry (KGO1) Latest exam

25. What is the name and type of bond that is formed for the compound with the chemical formula CaCl₂?

• Calcium chloride; ionic

• Calcium chloride; covalent

• Calcium dichloride; covalent

• Calcium(II) chloride; ionic

26. Which term describes the solubility of a polar solute, such as glucose, in water?

• Immiscible

• Insoluble

• Soluble

• Partially soluble

27. What is the approximate angle between groups in a trigonal planar geometry?

• 90°

• 109.5°

• 120°

• 180°

28. Glucose, blood sugar, has a maximum solubility of 91 g/100 mL in blood at 25°C. Which type of solution results from the concentration of glucose in the blood exceeding 91 g/100 mL at 25°C?

• Supersaturated

• Saturated

• Concentrated

• Unsaturated

29. What is the mass per volume percentage concentration of a solution made by dissolving 5.0 grams of acetic acid in enough water to produce 100.0 mL of solution?

• 20.%

• 2.0%

• 0.050%

• 5.0%

30. What is the mass per volume percentage of a sucrose solution prepared by dissolving 30.0 g of sucrose in enough water to make 1.00 × 10³ mL of solution?

• 0.0291%

• 0.0300%

• 2.91%

• 3.00%

31. How many liters of 0.15 M HCl solution are needed to produce 0.30 moles of HCl?

• 2.0 L

• 0.50 L

• 1.0 L

• 0.45 L

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