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by BlastRoom
Identify solutes and solvents and explain what particles do as substances dissolve.
#chemistry
24 questions
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A student stirs 12 g of NaCl into 80 g of water until the solid is no longer visible. Which choice correctly identifies the parts of the solution?
Iodine crystals are dissolved in ethanol to make an iodine solution. Which substance is the solvent?
A sealed bottle of sparkling water contains CO2 gas dissolved in water. Which identification is correct?
Vinegar labeled 5% acetic acid is mostly water with acetic acid dissolved in it. Which statement is correct?
Brass is a solid solution that is mostly copper with zinc atoms distributed through it. Which identification fits this solution?
A bottle is labeled MgCl2(aq). What does the (aq) tell you about this solution?
A chemist mixes 20 mL of water into 200 mL of ethanol, and the water spreads evenly through the ethanol. Which identification is best?
A student dissolves 3 g of sucrose, C12H22O11, in 200 g of water. What is the mass of the solution?
A NaCl crystal is placed in water. After mixing, separate Na+ and Cl- particles are each surrounded by water molecules. Which description matches?
Sucrose dissolves in water but does not form ions. Which particle description is correct?
When CaCl2 dissolves completely in water, which particles are present from each formula unit?
Methanol, CH3OH, mixes evenly with water. Which particle-level description is best?
Which particle equation best represents solid KNO3 dissolving in water?
In the hydration shell around a dissolved Na+ ion, which part of a water molecule points toward the ion?
In water around a dissolved Cl- ion, which orientation is most likely?
A solution conducts electricity after solid KBr dissolves in water. Which particle-level change explains this?
Sugar crystals disappear in iced tea, but the sugar molecules remain unchanged and spread throughout the water. What happened?
A saltwater sample is heated until the water evaporates, and dry NaCl is recovered. What does this show about the original mixing?
Candle wax becomes liquid when heated without any solvent present. How is that different from KCl disappearing in water?
Magnesium metal is placed in hydrochloric acid; bubbles form and MgCl2 remains in solution. How does this differ from dissolving sugar?
Oil forms a separate layer on water instead of mixing evenly. Which attraction idea best explains this behavior?
Why can water pull many NaCl ions away from the surface of a crystal?
Hexane is nonpolar and does not dissolve much NaCl. Which explanation best fits?
Water and ethanol mix in all proportions. Which interaction helps explain their solubility?
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Factors Affecting Solubility and Rate of Dissolving
20 questions
