Mark Levesley, Chris Meunier, Fran Eardley and, Gemma Young Solutions for Exercise 6: Exercise 6

Author:Mark Levesley, Chris Meunier, Fran Eardley & Gemma Young

Mark Levesley Science Solutions for Exercise - Mark Levesley, Chris Meunier, Fran Eardley and, Gemma Young Solutions for Exercise 6: Exercise 6

Attempt the free practice questions from Exercise 6: Exercise 6 with hints and solutions to strengthen your understanding. Cambridge Lower Secondary Science Stage 7 : Student's Book solutions are prepared by Experienced Embibe Experts.

Questions from Mark Levesley, Chris Meunier, Fran Eardley and, Gemma Young Solutions for Exercise 6: Exercise 6 with Hints & Solutions

EASY
Lower Secondary Stage 7
IMPORTANT
Cambridge Lower Secondary Science Stage 7 : Student's Book>Chapter 7 - Acids and Alkalis>Exercise 6>Q 1

What pH does a neutral substance have?

MEDIUM
Lower Secondary Stage 7
IMPORTANT
Cambridge Lower Secondary Science Stage 7 : Student's Book>Chapter 7 - Acids and Alkalis>Exercise 6>Q 2

Sometimes, acidic or alkaline solutions need to be neutralised. Describe how you could neutralise an acidic solution and how would you know that neutralisation has happened.

EASY
Lower Secondary Stage 7
IMPORTANT
Cambridge Lower Secondary Science Stage 7 : Student's Book>Chapter 7 - Acids and Alkalis>Exercise 6>Q 3

What colour would universal indicator change to if added to a neutral solution.

MEDIUM
Lower Secondary Stage 7
IMPORTANT
Cambridge Lower Secondary Science Stage 7 : Student's Book>Chapter 7 - Acids and Alkalis>Exercise 6>Q 4

Question Image

The simple experiment shown in the figure could be changed by using a measuring cylinder to add the alkali, and using the colour change of the indicator to estimate pH. How could you show the way that the pH changes as you neutralise the acid with an alkali?