Back to the full dot-point answer
SingaporeScienceQuick questions
Matter and Materials
Quick questions on Acids, bases and the pH scale: N(T) Science Matter and Materials
3short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What are neutral substances?Show answer
A neutral substance is neither an acid nor a base. Pure water is the most important example. Neutral substances sit right in the middle between acids and bases.
What is the pH scale?Show answer
The pH scale is a way of putting a number on how acidic or basic something is. It runs from 0 to 14.
What are indicators?Show answer
An indicator is a chemical that changes colour to show whether something is an acid or a base, so you can test safely without tasting.
Have a question we have not covered?
This dot-point answer is short enough that we have not extracted many short questions yet. Read the full dot-point answer or ask Mo, our study assistant, in the chat for follow ups.