HELUS: Phys. Sci.: Chapter 9: Acidic and Basic Solutions
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| show | substances
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| show | properties
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| ___ and ____ are substances | show 🗑
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| show | mixture
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| Substances making up a mixture retain their individual ___ properties | show 🗑
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| show | physical
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| A ___ mixture is two or more substances that are evenly mixed on the atomic level,but that are not bonded together. | show 🗑
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| A solution is a ___ mixture formed when a solute dissolves in a solvent. | show 🗑
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| show | alloy
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| show | heterogeneous
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| show | Solubility
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| show | unsaturated, saturated
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| show | concentration
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| The concentration of a solution is sometimes expressed in units of ___ per liter. | show 🗑
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| show | dilute
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| A molecule such as water, having a slightly positive end and a slightly negative end, is called a ___ molecule. | show 🗑
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| A simple rule for solubility is “___ dissolves like.” | show 🗑
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| show | conduct
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| An ___ produces ions when it dissolves, whereas a nonelectrolyte does not | show 🗑
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| An acid is a substance that releases a positively charged ___ ion, H+, in water | show 🗑
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| show | sour, red
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| show | hydronium
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| Because acid solutions contain ___, they conduct electric currents | show 🗑
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| A base is a substance that produces ___ ions when dissolved in water | show 🗑
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| show | OH-
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| Bases feel ___ on your skin, taste bitter, and turn red litmus paper blue. | show 🗑
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| Most bases are ___ compounds | show 🗑
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| show | pH
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| show | 0, 14
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| A highly ___ solution has a pH near 0, whereas a highly ___ solution has a pH near 14. | show 🗑
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| A ___ solution has a pH of 7. | show 🗑
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| show | hydronium
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| The higher the concentration of hydronium ions, the more ___ a solution is. | show 🗑
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| All acid and base solutions contain both hydronium ions and ___ ions | show 🗑
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| In a neutral solution (pH 7) the hydronium and hydroxide ion concentrations are ___ | show 🗑
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| A change in one pH unit represents a ___ change in the acidity or basicity of a solution | show 🗑
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| When an acid and a base are mixed, a ___ reaction occurs | show 🗑
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| A neutralization reaction produces water and a ___ | show 🗑
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| show | indicator
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| show | pH meter
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