Across
- 4. allows an inspector to determine only whether a solution is acidic or basic
- 5. substances that change colour when they are added to acidic or alkaline solutions
- 7. consisting of a protonated water molecule and present in all aqueous acids.
Down
- 1. a measure of how acidic/basic water is
- 2. It consists of hydrogen and an oxygen atom which are held together by a covalent bond
- 3. a substance that can accept hydrogen ions in water and can neutralize an acid
- 6. A chemical that gives off hydrogen ions in water and forms salts by combining with certain metals