Exam: TOEFL

Definition: This term describes a type of organic compound where the carbon atoms are connected in straight or branched chains, rather than in rings.

Example: Aliphatic compounds are often used in the production of fuels and lubricants.

Definition: This term describes a situation where a person can read but does not have any desire or interest to do it.

Example: Despite being able to read, her aliteracy meant she rarely picked up a book.

Definition: A type of chemical substance that is very basic and can react with acids. It often comes from alkali metals and can be found in things like plant ashes or certain mineral salts.

Example: Sodium hydroxide is a common alkali used in various industrial processes.

Definition: Having a high amount of substances that can neutralize acids, making a solution basic rather than acidic.

Example: The soil in this region is alkali, making it difficult for many plants to thrive.

Definition: This word describes a substance that has a pH level higher than 7, meaning it is not acidic. It often refers to solutions that can neutralize acids and may contain alkali metals.

Example: The alkaline solution was used to neutralize the acid.

Definition: Alkalinity is the measure of how much alkali is present in a substance, indicating its ability to neutralize acids. It describes the quality of being alkaline, which means having a pH level greater than 7.

Example: The alkalinity of the water was tested to ensure it was safe for aquatic life.

Definition: The process of changing a substance to make it more alkaline, which means it has a higher pH level and is less acidic.

Example: The alkalinization of the soil improved its fertility.

Definition: To change a substance so that it becomes more alkaline, which means it has a higher pH level and is less acidic.

Example: The chemist decided to alkalinize the solution to improve its effectiveness.

Definition: To make a substance more basic and less acidic.

Example: The scientist decided to alkalise the solution to improve its effectiveness.

Definition: To change into a substance that has a pH level greater than 7, making it less acidic.

Example: When the solution is heated, it will alkalize and become less acidic.

Definition: To change a substance so that it becomes less acidic and more alkaline, often by adding a base.

Example: The scientist decided to alkalize the solution to improve its effectiveness.