Ch. 4: Solutions, Acids and Bases A Solution is a Type of Mixture The Amount of Solute that Dissolves can Vary Solutions can be Acidic, Basic, or Neutral.

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Presentation transcript:

Ch. 4: Solutions, Acids and Bases A Solution is a Type of Mixture The Amount of Solute that Dissolves can Vary Solutions can be Acidic, Basic, or Neutral Terms

Is the sand and water considered a mixture or a solution? Mixture—not the same throughtout. Parts can be be physically separated b/c they are not chemically changed.

A ___________ is a substance that is dissolved to make a solution. Solute

When substances in a solution are in the same physical state (solid, liquid, gas), which is the solvent? The solvent is the substance that is present in the greatest amount. Given that information...what would the solvent be for the air we breathe? NITROGEN!

In a suspension, the particles are __________ than those found in a solution. Larger—instead of dissolving, these particles turn the liquid cloudy.

Will the boiling point increase or decrease if we add more solute to a solution? Increase.

The amount of solute dissolved in a solvent at a given temperature is known as... Concentration

Sometimes a solution contains more dissolved solute than is normally possible. What is this known as? Supersaturated

________ are insoluble (will not dissolve) in water. Oils

An increase in temperature for a solid will ___________ its solubility. An increase in temperature for a gas will ___________ its solubility. Increase; decrease. **TWO PART QUESTION

Because water is _________ and oil is ______________, their molecules are not attracted to each other. Polar; Nonpolar

Which of the following is NOT a proper way to test if something is an acid? A.seeing if it reacts with a metal B.placing a few drops of solution on a compound that contains carbonate C.Tasting it D.Using litmus paper C.—I’m really hoping everyone got this correct

Please name at least TWO examples of common household bases. Drain cleaner, soap, ammonia, alkaseltzers, baking soda, detergent, acetone (high levels)

True or False. Numbers below 7 on the pH scale indicate basic solutions. False—it would indicate an acidic solution

Please explain the concept of neutralization and provide a real-life example of this. Neutralization: a chemical reaction in which an acid reacts with a base to form salt. A common example occurs when you swallow an antacid tablet to relieve an upset stomach.

Acids ________ protons and bases _________ protons. Donate; accept

Neutral A __________ substance is neither an acid or a base.

What is a solution that has a low concentration of solute. Dilute

___________ is the amount of solute that dissolves in a certain amount of a solvent at a given temperature and pressure to provide a saturated solution. Solubility

What is known as the concentration of hydrogen ions in a solution (also measurement of the acidity) pH

Please give me an example of something with a pH level of 6.5 (remember, this is pretty close to being neutral!) Milk