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Q2W8CHEM
ACIDS AND BASES
Question | Answer |
---|---|
cation | positively charged ion |
anion | negatively charged ion, |
hydroxide ion | diatomic (2 atom) anion with chemical formula OH−. It consists of an oxygen and a hydrogen atom held together by a covalent bond, and carrying a negative electrical charge |
hydrogen ion | represented as H+ and it is the same thing as just a proton. One definition of an acid is a chemical substance that donates hydrogen ions (protons) to another chemical substance. |
Concentration | the abundance of a substance divided by the total volume of a mixture; most frequently it refers to solutes in homogeneous solutions. |
Acid | substance that donates hydrogen ions; most fruits and vegetables are slightly acidic, have a sour taste and low pH values |
Base | substance that accepts hydrogen ions or increases the concentration of hydroxide ions, slippery to the touch; has hydroxide ion (OH-). |
Corrosive (Corrode) | to destroy or damage in a certain way; most acids are very corrosive of metals. |
Neutralize | make chemically neutral; when acids and bases react together they can neutralize each other and make the pH value equal to 7. |
pH scale | logarithmic scale that represents the acidity or basicity of a substance; the pH scale changes by a factor of ten |