Q: Q: The concentration of a substance is the quantity of solute present in a given quantity of ___________? Read this paragraph and choose the correct option from the provided answers: Summary The concentration of a substance is the quantity of solute present in a given quantity of solution. Concentrations are usually expressed as molarity, the number of moles of solute in 1 L of solution. Solutions of known concentration can be prepared either by dissolving a known mass of solute in a solvent and diluting to a desired final volume or by diluting the appropriate volume of a more concentrated solution (a stock solution) to the desired final volume. Choices: - structure - mixture - salutation - solution A:
A: solution

Q: Q: What are organisms that eat just one type of food? Read this paragraph and choose the correct option from the provided answers: Specialists are organisms that eat just one type of food. Birds that are specialists include ospreys, which eat only live fish. You can see an osprey in Figure below . The osprey's feet are very well-adapted for catching fish. Its eyes are also well-adapted for seeing fish under the water. Its beak is well suited for gripping and ripping into fish flesh. Ospreys are so well-adapted to catching fish that they can't catch anything else!. Choices: - gluttons - hedonists - devotees - specialists A:
A: specialists

Q: Q: The process of a liquid becoming a gas is called boiling, while the process of a solid becoming a gas is called what? Read this paragraph and choose the correct option from the provided answers: Temperature does not change during a phase change. The process of a liquid becoming a gas is called boiling; the process of a solid becoming a gas is called sublimation. Choices: - vaporization - Boiling - Melting - sublimation A:
A: sublimation

Q: Q: Stirring, surface area, and temperature affect the rate at which what occurs? Read this paragraph and choose the correct option from the provided answers: When you add sugar to a cold drink, you may stir it to help the sugar dissolve. If you don't stir, the sugar may eventually dissolve, but it will take much longer. Stirring is one of several factors that affect how fast a solute dissolves in a solvent. Temperature is another factor. A solid solute dissolves faster at a higher temperature. For example, sugar dissolves faster in hot tea than in ice tea. A third factor that affects the rate of dissolving is the surface area of the solute. For example, if you put granulated sugar in a glass of ice tea, it will dissolve more quickly than the same amount of sugar in a cube. That's because granulated sugar has much more surface area than a cube of sugar. You can see videos of all three factors at these URLs:. Choices: - concentration dissolves - solute freezes - solute fragments - solute dissolves A:
A: solute dissolves