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Do now! Can you spell the following words CORRECTLY in your book? Newtralisation, asid, alcali, litmas, indicater.
Last lesson Using Litmus as an indicator
Indicators Indicators are chemicals (coloured dyes) which change colour in acids and alkalis.
Litmus Turns red in acid Turns blue in alkali
Litmus Turns red in acid Turns blue in alkali Litmus can tell us if something is an acid or an alkali, but it cannot tell us how strong the acid or alkali is
Other indicators We are going to investigate today whether other substances can be used as indicators
Making an Indicator SubstanceColour (neutral) Colour with acid (HCl) Colour with alkali (NaOH) A good indicator ? Red cabbage Beetroot Coffee Red cake decoration
Can you quickly, quietly and sensibly gather around Mr Porter? (Youll need your stools)
Test! Dont forget you have a test Friday on Digestion (8A)!
Safety in the Lab What is different about this classroom and every other classroom in your school?
PH. Acids Anything that produces H 3 O+ ions if dissolved in water Taste sour Turns blue litmus paper red When acids dissolve in water, it donates a H+ion.
Do now! Don’t forget you have a digestion test on Friday. Do some study whilst you are waiting.
Chapter 9 Acids, Bases, and Salts
Year 7 starter: THINK of a sentence using at least 2 of the following keywords indicator red acid purple colour green alkali neutral bleach lemon juice.
KS 3 laboratory Indicators De Lisle Catholic Science College Science department.
Do now! Can you spell the following words correctly in the back of your book? Nuetralisasion, indicater, litmas, alkcali, burete.
Acids and Bases. How acidic a substance is, or how basic a substance is, is measured on a scale known as the pH scale. This is a logarithmic scale that.
Using Indicators Aseel Samaro.
Acid Anything that increases the hydronium ion (H 3 O + ) concentration.
Acids and Bases 5.1 Acids and Bases.
What is pH? What is it like to eat a lemon? Scientists realized that the sour taste of a lemon is related to certain type of chemical when it is present.
ACIDS AND BASES. Acids Acidic solutions contain water and hydrogen ions (H+)
Indicators 1.Indicators are dyes which change colour when acidic or alkaline solutions are added to them. 2.Some common indicators are litmus, methyl orange,
Acids, Bases, and pH Chapter 9 Section 1.
Acids and Bases A Short Introduction Acids and Bases Are Everywhere Look around you and every liquid you see will probably be either an acid or a base.
Acids and Bases Have Two Different Faces. Acids and Bases I I
TCAP Review Lesson 17 Vocabulary Foldable (IX)
Acids and Bases.
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