Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Acidic and Basic Sol
HELUS: Phys. Sci.: Chapter 9: Acidic and Basic Solutions
| Question | Answer |
|---|---|
| Matter can be separated into two categories: ______ and mixtures | substances |
| A substance has the same composition and _____ throughout | properties |
| ___ and ____ are substances | elements, compounds |
| A ____ is a combination of two or more substances that can be separated byphysical means. | mixture |
| Substances making up a mixture retain their individual ___ properties | physical |
| Components of mixtures can be separated by taking advantage of differences in their___ properties | physical |
| A ___ mixture is two or more substances that are evenly mixed on the atomic level,but that are not bonded together. | homogeneous |
| A solution is a ___ mixture formed when a solute dissolves in a solvent. | homogeneous |
| A solid solution known as an ___ is a mixture of a metal and one or more additionalelements. | alloy |
| In a ___ mixture, the substances are not evenly mixed | heterogeneous |
| ___ is a measure of how much solute can be dissolved in a given volume or massof solvent | Solubility |
| An ___ solution can dissolve more solute at a given temperature, whereas a___ solution cannot. | unsaturated, saturated |
| The ___ of a solution is exactly how much solute can be dissolved in a specific volume of solvent | concentration |
| The concentration of a solution is sometimes expressed in units of ___ per liter. | grams |
| The words concentrated and ___ are approximate ways of describing solutions | dilute |
| A molecule such as water, having a slightly positive end and a slightly negative end, is called a ___ molecule. | polar |
| A simple rule for solubility is “___ dissolves like.” | Like |
| Ions in solution are responsible for the ability of a solution to ___ electricity | conduct |
| An ___ produces ions when it dissolves, whereas a nonelectrolyte does not | electrolyte |
| An acid is a substance that releases a positively charged ___ ion, H+, in water | hydrogen |
| Acids taste ___ and turn blue litmus paper ___. | sour, red |
| The hydrogen ion from an acid combines with a water molecule in solution to form a___ ion, which has the formula H3O+. | hydronium |
| Because acid solutions contain ___, they conduct electric currents | ions |
| A base is a substance that produces ___ ions when dissolved in water | hydroxide |
| The formula for the hydroxide ion is ___ | OH- |
| Bases feel ___ on your skin, taste bitter, and turn red litmus paper blue. | slippery |
| Most bases are ___ compounds | ionic |
| ___ is a numerical scale used to indicate how acidic or basic a solution is | pH |
| The pH scale runs from below __ to above __. | 0, 14 |
| A highly ___ solution has a pH near 0, whereas a highly ___ solution has a pH near 14. | acidic, basic |
| A ___ solution has a pH of 7. | neutral |
| pH is a measure of the concentration of ___ ions in solution | hydronium |
| The higher the concentration of hydronium ions, the more ___ a solution is. | acidic |
| All acid and base solutions contain both hydronium ions and ___ ions | hydroxide |
| In a neutral solution (pH 7) the hydronium and hydroxide ion concentrations are ___ | equal |
| A change in one pH unit represents a ___ change in the acidity or basicity of a solution | tenfold |
| When an acid and a base are mixed, a ___ reaction occurs | neutralization |
| A neutralization reaction produces water and a ___ | salt |
| An ___ is a compound that changes from one color to another within a particularpH range. | indicator |
| A __ ____ is an electronic instrument with an electrode that is sensitive to the hydronium ions in a solution. | pH meter |
Created by:
jnosik
Popular Science sets